Thanks for the welcome!
Can I ask a question? A month ago when I was thinking of running for the first time I would have thought that my breathing would be an issue, that it would get so out of puff and feel like my lungs were on fire. That hasn't happened, in fact I quickly get into a comfortable rhythm.
My biggest issue is the heavy feeling in my legs, particularly my knees. It's really dragging me down. It's not a pain just a heavy leaden feeling.I'm wearing well fitting proper trainers, I warm up but maybe could do better. Is this something that I'll eventually get over or is it just me being a stone overweight and 43?