Marydoll
It biologics for RA, which cause mine.
DH gets such a fright, when I start screaming /thinking I am being murdered!
It is so real, it leaves me upset fro the rest of the day.
Hi Mary doll, I am also on a biological for RA but have been for several years so I didn't think they were causing my excessive dreaming. But thinking about it maybe they are responsible. Thankfully, I don't have a partner to disturb but I'm sorry yours are so bad that you wake up screaming 
Oldbat1 - I'm not on heart medication as such, just hypertension meds.
Pinkprincess - I do recall some vivid dreams when pregnant but they didn't bother me then. When I went back on hrt last year, my sleep vastly improved.
Bigbopper - I think we would all respond the same way to a dream about spiders in the bed!! Yikes!