At Work On Roof And Tongue Began To Swell, Hives

at work on roof and tongue began to swell, hives on side of ribs into arm pit and down the inside of arm, numb hands, golf ball size lumps on forearms and itch and hard to breath. did not feel like i got bit by something and did not eat anything that i have not eaten in the last year different for lunch. ???? went to urgi- care and they gave me epi pen and benidryl.