why did my friend flinch when she was touched? i have noticed this on multiple occasions with different guys. i had a sleepover with her and we were sleeping on the floor next to eachother, i had to get up and use the bathroom and when i got back and was getting sittuated a brushed her arm in the process not on purpose. her whole body went into a tight ball, and her breathing got heavier after like 6 seconds she went back to normal. i am pretty worried please HELP only realistic answers please​