I am so happy to hear that you and he talked openly about the experience(s) and how they've affected you both.
That is terrific news! 
Yaaayyyy!
Sorry that you had another scary event occur afterward. Your description sounds like low blood pressure. Like, you were sitting in a way that didn't allow free flow of the blood ~ so when you stood up, the blood flowed down & took longer to get back up into your brain. Getting up more slowly helps in preventing woozy events like these.
MedicineNet:
When blood pressure is not sufficient to deliver enough blood to the organs of the body, the organs do not work properly and can be temporarily or permanently damaged. For example, if insufficient blood flows to the brain, brain cells do not receive enough oxygen and nutrients, and a person can feel lightheaded, dizzy, or even faint.
Going from a sitting or lying position to a standing position often brings out symptoms of low blood pressure. This occurs because standing causes blood to "settle" in the veins of the lower body, and this can lower the blood pressure. If the blood pressure is already low, standing can make the low pressure worse, to the point of causing symptoms. The development of lightheadedness,
dizziness, or
fainting upon standing caused by low blood pressure is called
orthostatic hypotension.
In times like you described, do you lose consciousness? What does your body do during these times? Are your eyes open throughout? How about your mouth ~ Saying anything or snapping your mouth shut? Does your
entire body become rigid and then start shaking violently? Or, are only certain parts of your body shaking ~ which ones?
Epilepsy.com
A seizure is usually defined as a sudden alteration of behavior due to a temporary change in the electrical functioning of the brain, in particular the outside rim of the brain called the
cortex. Below you will find some of the symptoms people with epilepsy may experience before, during and after a seizure. Seizures can take on many different forms and seizures affect different people in different ways. It is not implied that every person with seizures will experience every symptom described below.
Seizures have a beginning, middle, and end
When an individual is aware of the beginning, it may be thought of as a warning or aura. On the other hand, an individual may not be aware of the beginning and therefore have no warning.
Sometimes, the warning or aura is not followed by any other symptoms. It may be considered a simple partial seizure by the doctor.
The middle of the seizure may take several different forms. For people who have warnings, the aura may simply continue or it may turn into a complex partial seizure or a convulsion. For those who do not have a warning, the seizure may continue as a complex partial seizure or it may evolve into a convulsion.
The end to a seizure represents a transition from the seizure back to the individual’s normal state. This period is referred to as the “post-ictal period” (an ictus is a seizure) and signifies the recovery period for the brain. It may last from seconds to minutes to hours, depending on several factors including which part(s) of the brain were affected by the seizure and whether the individual was on anti-seizure medication. If a person has a complex partial seizure or a convulsion, their level of awareness gradually improves during the post-ictal period, much like a person waking up from anesthesia after an operation. There are other symptoms that occur during the post-ictal period and are detailed below.
Please note: Below is only a partial list, some people may experience other symptoms not listed below. These lists are meant to help patients communicate with their physicians.
Early seizure symptoms (warnings)
Sensory/Thought:
- Deja vu
- Jamais vu
- Smell
- Sound
- Taste
- Visual loss or blurring
- Racing thoughts
- Stomach feelings
- Strange feelings
- Tingling feeling
Emotional:
- Fear/Panic
- Pleasant feeling
Physical:
- Dizziness
- Headache
- Lightheadedness
- Nausea
- Numbness
No warning:
- Sometimes seizures come with no warning
Seizure symptoms
Sensory/Thought:
- Black out
- Confusion
- Deafness/Sounds
- Electric Shock Feeling
- Loss of consciousness
- Smell
- Spacing out
- Out of body experience
- Visual loss or blurring
Emotional:
Physical:
- Chewing movements
- Convulsion
- Difficulty talking
- Drooling
- Eyelid fluttering
- Eyes rolling up
- Falling down
- Foot stomping
- Hand waving
- Inability to move
- Incontinence
- Lip smacking
- Making sounds
- Shaking
- Staring
- Stiffening
- Swallowing
- Sweating
- Teeth clenching/grinding
- Tongue biting
- Tremors
- Twitching movements
- Breathing difficulty
- Heart racing
After-seizure symptoms (post-ictal)
Thought:
- Memory loss
- Writing difficulty
Emotional:
- Confusion
- Depression and sadness
- Fear
- Frustration
- Shame/Embarrassment
Physical:
- Bruising
- Difficulty talking
- Injuries
- Sleeping
- Exhaustion
- Headache
- Nausea
- Pain
- Thirst
- Weakness
- Urge to urinate/defecate
If you or someone you know has the symptoms listed above -- you are not alone. Below are personal stories by people who have either experienced or witnessed seizure symptoms.
Hope that you don't mind reading through the information above. It is a lot. But, it sure can help determine a better sense of what you're dealing with in the moment. Especially when you have a witness, who can tell you what occurred when you were unconscious or semi-conscious.
