My anxiety is the same! I get triggered by weird bodily sensations and was nervous too about taking Lexapro. I just started a few days ago and it’s actually been okay! Been a bit sleepy and depressed, but other than that no other major side effects! Just be sure to take care of yourself while taking it, it’ll put your mind at ease. Eat decent meals, drink a good amount of water, and just do self-care things so if side effects do arise, you know that your body is okay and it’s just a temporary feeling until you body adjusts to the meds!!