OOTD- Red and striped!

This morning I woke up with a rash all up my back and on my inner arms, what is going on?  I am only 32 should I be having all of these physical aliments?  Ey-yi-yi, I think I may be allergic to something now to figure out what the heck it is!  I am slightly obsessed with stripes this season and adore this little top!

Top Anthro: Yardam Tee

Shorts Citizens: Bermuda shorts

Shoes Steve Madden: similar here and cheap here

Necklace Anthro: similar here