Recently I Had Just Finished Working Out. About An Hour

Recently I had just finished working out. About an hour later one of my arms felt weird (left). Tingly kind of and this had happened before. I assume med that my exercise bra strap was too tight on a nerve in my shoulder. It went away but very uncomfortable. Yesterday both arms started happening and it became very uncomfortable. I tried stretching, rearranging my exercise bra straps, moving about and nothing! Then I was leaning on a balcony because I felt a liitle dizzy and both my arm muscles were spasming?? What is happening? It lasted for about 5-7 mi utes and went away!

Suggestions?? Please