For the last two days my right arm has been very sensitive, my shirt touching or brushing your fingertips long it causes a lot of discomfort.. like it s getting burned (hard to explain the sensation) Its a section probably about an inch wide, from the base of my thumb on the palm side of my hand, up to my shoulder.. from what I can tell it runs along my Cephalic vein . It is not swollen and doesn t look funny. I am a 31 yr old female, 5 7 150 lb s, and in relatively good shape. I had a case of strep throat about a month ago, ended up on a z-pack for a chest thing afterwards and an inhaler for reactive lungs? . Wondering when/if I should worry about getting this checked out..