Hey guys. I had to get off quetiapine (seroquel) because it caused severe tachycardia on three separate occasions. I quit cold turkey because I feared that at some point it could cause a heart attack. I was taking 450 mg daily and I can’t remember for how long I was taking it, but I know it was no longer than 6 months. The withdrawal symptoms have been hell. It’s been 3 weeks since I’ve stopped, and the troublesome symptom I’m experiencing is severe anxiety/excitedness/restlessness. I feel like that 24 hours. It’s so hard to sleep! I have other symptoms but not too bad… I guess my question is how long will this last? Why is this happening? Will it stay like that until I try another medication? What can I do to not feel like my heart is going to come out my chest? It’s especially killing me feeling this way.