I have head pressure that is unrelenting, mostly in the back and on the top of my head.  On my right side, in one localized spot, it feels as if something is pressing on my brain (?).  In addition, my right eye has begun to twitch.  Often, my brain feels "wet" and sometimes "cold"...please advise.
Hello! Welcome on Chat Doctor ! Your symptoms could be related to tension type headache, which is a benign type of headache, related to anxiety. For this reason, I would recommend trying Yoga and performing a lot of physical activity, which can help improve the situation. If the headaches persist, consulting with a neurologist and starting an antidepressant would be the right step to follow. A bran MRI is also necessary in case of persistent headaches. Hope you will find this answer helpful! Kind regards,