I agree with Theresa1991, you are under an extreme amount of stress and it is very possible it could trigger episodes or make them worse. Stress has triggered episodes for me in the past, and made them worse.

As for self care I try to do some mindfulness exercises, rhythmic breathing, eat well, exercise, do things I find fun or interesting like play guitar and sing or read up on topics I enjoy. Finding joy in things can be difficult at times but doing the activities still helps. Taking time out for yourself is important too, like walks on the beach. Also catching up with friends and family who get your illness can help. Try not to overdo it and go at a steady pace where possible. caring for someone can be very exhausting. You are an amazing person to be doing this. Be kind to yourself. Hope things calm down soon. Take care.