Don't know what to do now...

middlehaitch

Give yourself a 3 or 4 month break and see how things go. I truly would hold off the lifting until you get yet another opinion and/or try the squatting that has been recommended ( I body squat quite a lot and at 61 I am relieved to read it is going to help keep my waterworks in good working order)

Do try Zumba, I have just finished my first session and it is hilarious, already signed up for the session! You can avoid any jumps that are contra- indicative to your condition.
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I also do Zumba Toning ( their term not mine) with hand weights, and aquafit.
Not what you want to do, but really funny experiences for you to try.
Cheers, h.

tomatoey

I think you should listen to your PT and consultant. Sure, get another opinion in the private sector if you want. But they've 1) seen you and 2) have the knowledge to treat you, and no one here has.

You can improve your muscle strength and size with high-rep workouts:

* Low-Load High Volume Resistance Exercise Stimulates Muscle Protein Synthesis More Than High-Load Low Volume Resistance Exercise in Young Men (this is at 30% of max load, to failure, in young men)
* Resistance exercise load does not determine training-mediated hypertrophic gains in young men (this is 3 sets of 30% of max load, young men again )
* Bret Contreras' Jane Fonda Experiment (mentioned above)

Why not see how far you get with the activities your PT has okayed?