Kiwitou:As long as you eat more calories than you burn it's possible. You should calculate how much calories your body needs per day as someone who is exercising often so you can guess how much calories you need to eat to still gain weight.
I think this link might help:
www.freedieting.com/calorie-calculatorYou just have to eat more than your maintenance daily calories intake.
Yes that!
Note though that being heavy is hard on the joints so you have to stay on top of your nutrition and have some weights days to improve your posture.
My ex played tennis well at about 245lbs but it required more effort than going the same at a lower weight. If you want it, work for it.
