Hi scoofynewfie, welcome to the PTSD forum. The answer to your question is "yes" the fearful feeling you are discribing is normal with PTSD, and sadly family members can be unsupportive because they don't know "how" to be supportive.

It is important that you find a therapist that has experience with helping patients that struggle with PTSD. While you are very sensitive and confused right now, you can work through this stage and slowly make some "healing" gains on this challenge. Each person is different depending on what the person has to work through.

You are always welcome here to vent or ask questions when you need support.

((Welcoming Hugs)))
OE