I am a 21 year old male. I am 6 0 , 190 lbs. As far as relevant medical history, I am being treated for hypertension and am currently taking Ramipril for that. For the past few days I have been experiencing some mild, yet consistent, pain and numbness under my left armpit all the way down my arm into my index finger. There is a little weakness and limited mobility in my arm, but nothing too bad. I ve been taking ibuprofen, which helps the pain but not the numbness. My first instinct points to a pinched nerve or something, but with my hypertension, it has me a little bit nervous especially since its the left arm. I m on a college budget so i don t want to waste money on a co-pay for something thats no big deal. There was no injury or trauma, it just started randomly in the middle of the day. I am not experiencing any other symptoms other than those stated above. Any advice?