15 weeks + 6 days burning sensation?

Hi Ladies,

For about 2 weeks I have been experiencing a burning sensation under my skin on my right arm. It’s not hot to touch, it does hurt to push down on it, there’s no tingling sensation or numbness involved. I am just really really worried because I have anxiety really bad and Ofcourse that makes me Google, and the first thing that pops up is multiple sclerosis. I’m terrified, I take Lexapro 10mg(doesn’t help) I also take pantoprazole 40mg once a day. I take my prenatals and magnesium for migraines. I am hoping that other pregnant women are experiencing this same thing.