I'm 5'4 and top end obese bmi. But I've found my mojo and over the past 2 months have gone from 16 stone 9 to 15 stone 10. I'm going to the gym 3 times a week and have started trying to progress from walking to jogging on the treadmill. I've been managing to alternate 3-4 minutes jogging with around 2 minutes walking. Really proud of myself, except now I'm getting pain in my hips. It's bearable but I don't want to do myself any harm. Does anyone know if people above a certain bmi are advised not to run? I've looked online but can't find a clear answer.