Bromo symptoms and conditions

Positive: I get a good nights sleep.

Negative: I feel no emotion & weight gain. But I take with bromocriptine & venlafaxine. The venlaf.. & Quetiapine help the depression and insomnia caused by the bromo. I don't know which out of the three, or if the combination of all three, is causing me to some nights shake like I am freezing and my teeth chatter. But I have the heat cranked, three blankets on and i feel like I am sweating under the covers but I am still shaking like I am very cold. I don't understand that.