Had possible tia 4 years ago, began with vision problems, within 1/2 hour couldn't speak, trouble getting right words out, cognitive problems etc. Had mri, blood work, full work up, was adv. Possible tia or migraine variant. No history of migraines. Have had weird symptoms on/off since. Few days ago, had flush feeling, felt like I was going to pass out. Then right side got very heavy. Wasn't completely numb, could move it, slowly, took alot of concentration, and ended up using left side to help. Went to er had ct scan, bloodwork, etc. Nothing showed up. Following up with neuro next week. Since then my right arm and hand have been very sore. And have had this cold sensation in right hand. My hand actually gets very cold, noticeable to others. One vein in hand looks slightly swollen, or bigger than usual. Have heard could be something autoimmune going on, or neurological. Anyone with any input would be appreciated....... Thanks....