Tennis action - and I need more work!

It's been a long time since I was playing the sport of tennis. Today is the end result of it - aching muscles and having lots of tan on my face, neck, legs, and forearms. In spite of those things, I feel grateful to still have it. I realized that my stamina needs some work. At first, things were going consistent between myself and hitting partner Jimmy. Then we both tired out. However, I do think that my shoes were also a factor. The shoe size was up by one and it felt so loose. It felt rather odd running in those because any moment, they could come right off my foot. Looks like, I'll have to buy new tennis shoes sometime. Call me weird, but I've been buying shoes that is specifically built for a certain activity/function, such as running shoes (for running), walking shoes (for walking), loafers (for working), and boots (for rough terrain). My old shoes definitely need to be thrown away. I still see some in the garage that have already spanned a decade. Also what could increase my strength is flavored water or Gatorade. Last time I sipped on one of those, I performed well. I really need a lot of work physically although I have lost a significant amount of weight lately. Perhaps my body just needs some getting used to the sport after a long hiatus. At least, it's good to be back in the game of tennis.