i had a pulled hamstrign, had it for about 3 weeks now, and today it felt good and when i did 3x30 and 1x55 on it it didn’t hurt at all. I lfited with it and so on and i put it in cold water and then hot water and then took a shower. When i got out i noticed there was a lot of brusing on it, not blue bruises but red liek brusies like blood bruises so to say, with a lot of the brusing concentrated around where i originally puleld it. Is this good or bad?