AIBU for pulling H up on his habit of taking the piss out of me if I attempt to exercise?

[Menopausio]

Because he is feeling sorry for himself now.
Im obese, high heart rate, mobility problems due to chronic pain and in menopause.
Over the past few months Ive been making slow, steady changes to improve my health. Im now at the point where I can start to up my cardio so as well as going for long walks Ive started the couch to 5k . Im doing that on our treadmill until I feel more confident. I usually do this when H is out of the house, however he is at home today and has just followed me out to where the treadmill is , asking if Im going to run for 30 seconds , laughing at his own joke, should he have an ambulance on standby ect. I finished my session then came in and calmly asked him why he would do that ?! Its very out of character for him.
Apparently he was only joking- asked him to explain the joke.
Ive now been told Ive no sense of humour. He has been told that if he cannot be supportive, or at the very least keep his stupid comments to himself , he can stay well away from me when Im exercising.

Well done OP sounds like you handled this perfectly. You know he is unreasonable and that no one should belittle anyone else’s efforts to be healthier, especially not someone who should have your best interests at heart

He is a naturally slim build, eats like a horse.
the self-righteousnous (sp?) of the effortlessly slim towards the efforts of overweight.

DH and I base our whole relationship on piss taking and laughing at each other - it’s what we do and it’s done with a lot of love and affection in a very secure and comfortable space.
If that’s not how you guys are generally and that came out the blue it seems mean and unnecessary tbh.