This may seem a really stupid post but I just havesome simple questions. lately when I have been pushing myself on the push up front and crunches, but i find myself waking up the next day with real tight triceps and arm pits and with the crunches a really sore stomach with the effects lasting 3-4 days. stopping me doing a lot of other exercise.... Now would most on here say its just whats ment to happen? or doing to much or just incorrectly? atsch