Prazosin
"Is it possible to have a reverse reaction to this drug? I started 1mg per day and I’ve had INCREDIBLY vivid dreams, about 8 dreams per night. thankfullly none are nightmares but some are stressful like a dream about my boss yelling at me. I also can’t stand up for long about 3 hours into it, I get dizzy, I start hearing colors if that makes sense, and I lose touch with reality. It’s all relieved by sitting or lying down again. 
The last but not least side effect is heart palpitations which are exacerbated by even the least physical activity like standing up. I assumed this was just first dose syndrome and it would work properly once my body adjusted to it. The thing is, it’s been two weeks now and I’m starting to think these opposite effects aren’t gonna go away"