Mate, please be careful...
I completely agree with Curiosity77 that you should go easy on yourself.
We sometimes feel we have to be strong when we have to take care of others, but you can't if stress destroys YOU.
And I mean literally destroy you; about 2 years ago I was so stressed out I got physically Ill. I felt weak, my throat hurt and I couldn't stop coughing for a month.
The doctor said that the stress had weakened my immune system to the point I was dying, so if stress can do that, it can sure as hell cause your symptoms.