Suggest Remedy For Nausea, Frequent Urination Urge And Itchy Scalp

I m 21 years old, I m 5 4 and weigh 145 pounds. I ve been having different issues and Ive been telling myself that it s a side effect of my birth control. I ve been taking Orsythia for a year now. The things I have been noticing might have nothing to do with my birth control. I am 100% sure I am not pregnant. My symptoms are as follows: -random nausea followed by peeing very frequently. This normally happens during the evening. -my scalp has become very itchy and has a crusty residue. -I randomly wake up in the middle of the night in panic. -I ve woken up to hallucinations that last about 5-8 seconds. -I have been experiencing extreme anxiety. If anyone knows what could be going on, please let me know!