I too tried to quit Seroquel cold turkey, I was very sick for days. I have medication issues as well. But, kust keep trying until they get it right. I know it is hard and I know how you feel. Some days I just want the world to stop and let me off for a few days until I feel better. BP is a hard thing to live with but I do have faith that one day i will find the right meds, that one day I will feel like going out and enjoying life again. BP is like being on a roller coaster, everyday. What a ride!
I hope you feel better soon. Take Care.