I think it's worth consulting with PT/pros who could give feedback on the ramp up period and the load you're putting yourself under. What I've read in my resear

I think it's worth consulting with PT/pros who could give feedback on the ramp up period and the load you're putting yourself under. What I've read in my research is that you can feel fine for a while but if you're not building up methodically you can cause yourself some long term issues but with a delay. Congrats on the weight loss and figuring out that you can be a runner. It's quite liberating. I was never a good runner even in peak competitive basketball conditioning in my late teens and thought I would never be a runner until a few years ago. Keep pushing!