Found this picture today. I believe I was around 250-260 here. I could only do about 5-8 miles at a time. I remember riding my bike and thinking I was going to break it. My stomach just stuck out sooo far. Thank goodness I never gave up. I can ride 30 miles at a time now 
what bike do you own? It’s lovely in the header picture
It’s a KHS. Not sure the model, but I can find out for you 🙂