I basically have been into tennis seriously for about 2 months now but only played about 2 -3 days a week and not very intensly for about an hour or two. I just played sunday, monday, and tuesday intensly for about 2 hours each time and my body feels really worn down. I also lifted for about 40 min on monday and tuesday. Is there any way to combat the feeling of my body being worn down? is this just because my body isnt used to it and itll go away?