Hello, I Had A Stent Put In Left Carotid Artery

Hello, I had a stent put in left carotid artery in neck in Jan. I have been on plavix and aspirin as well as Lipitor.
I also have have a pinched nerve in neck that Doctor felt was causing numbness in arms but I also have a lot of other symptoms going on. My head feels like it is burning a lot, pressure inside ears and my scalp feels tender. Have a lot of muscle weakness. Any thoughts on what is going on?