You probably never had this much energy before because you ate a lot of unhealthy junk as well as meat. You'd probably be in better shape than you are right now if you started eating meat. You're fitter now because you've been lazy all your life and never exercised. As for beating experienced runners as a beginner, you must be racing tortoises or something. Even old people who've been running their whole life can easily beat novice runners. Cutting meat out your diet isn't going to suddenly turn you into superman.
I've tried pretty much every diet out there; low meat diet, Mediterranean diet, including the ones without any junk food like the Paleolithic diet Ron (person above) talked about. And yes, I did my research and ate the diets correctly. I felt tired after every meal and always felt like having a nap. I thought that was normal. I went around eating eggs and bacon for breakfast while on the Paleo diet, and felt really sluggish afterwards, and this was just after waking up. Now though my views have changed after doing experimentation and research on eating differently.
Another reason I no longer eat meat is that there is literally no point in eating it once you learn the truth, educate yourself, and face the facts. You can live longer without it, feel more energized without it, cure diseases including cancer without it, save money without it, become smarter without it, overall improve your life without it. Let me know if you disagree with any of these statements, or if you think that you DO need meat to survive.
Like I said before, in none of my diets did I have any urge to exercise or move around, in part due to the difficulty. I cycled instead of driving every now and then before vegan, but I'd felt BEAT and tired once I got there. Now it's very difficult for me to tire myself out doing any activity, I don't know if you ever felt that experience before, but it's basically like being on caffeine 24/7. That's one reason why there are so many elite level vegan and vegetarian endurance athletes, because it is so difficult to tire yourself out.

I am on the verge of 85 and still work as hard as ever. I have lived quite long enough and am trying to die; but I simply cannot do it. A single beef-steak would finish me; but I cannot bring myself to swallow it. I am oppressed with a dread of living forever. That is the only disadvantage of vegetarianism.
As I said, I adopted a vegan diet in 1987 At the time, I was running cross country, and when I dropped meat and dairy products from my diet, my 10k time plummeted from about 46 or 47 minutes down to between 42 and 43 minutes. Basically, when I stopped forcing my body to expend so much energy processing saturated fat, cholesterol, and animal protein, I had more energy, my metabolism sped up, I dropped a few pounds that I didnt even know I had, and I got faster. I also found that I needed less sleep, had far more energy, and felt happier, just in general. Of course, I am not unique. Vegans are always telling me that they need less sleep and less coffee and have more energy than they ever had before. They also tell me that their newfound energy has made them happier.


Also if you think you can't enjoy Fish, Beef, Chicken, etc, on a vegan diet, there are vegan substitutes of each one that are made of no animal products, are healthier for you, are cheaper to buy and produce, and taste better than real meat (as was taste tested in a live experiment). If you don't believe me, go to ANY vegetarian or vegan restaurant in your area, they will have these meat substitutes of every kind there. Let me know if you can tell the difference between real meat and the veggie meats.

There is literally no sacrifice to be made here. None. You improve your health, save your money, improve your energy levels, you can reverse cancer, reverse diabetes, save the animals, save the planet, become smarter, and eat the same kinds of foods as before. Again let me know if you have any contrasting beliefs or disagree with any of these statements.
Check out some of these videos:
Benefits I felt after taking meat out of my dietUprooting the Leading Causes of DeathGirl Cures and Reverses Stage 3 Brain Cancer on Vegan diet