Back and work and feeling great, but my arms are now throbbing and aching underneath at the top where the muscles are on them.. and all down at times. Have other people had this? Im not lifting anything heavy, opening the doors has been difiicult to move around the bujilding as they are fire doors, but im tending to open then use my body or legs to open.. has anyone else been experiencing this? boobs feel fine just the normal expected sensitivity pains .. x