I have been on spironolactone for a bit over 6 months now, since I started it after I started on E.
I have noticed in the last few months when I exercise it doesn't make me any stronger. No T means you do not grow muscle so well. I am reckoning that my recent exercise has broken down the muscle and where if I had T it would rebuild it stronger, it just isn't, and this is with my thighs. I ride my bike a lot so they are well trained. I had to lift some things around in the garden for an hour or so in the summer just a couple months on spiro, my biceps hurt for days. I eat meat every day, I have a good protein intake.
So anyway, being on HRT and doing a labouring job you are pretty much going to be on a losing battle, especially as a veggy. Maybe though you can mitigate it by eating more protein? More eggs? Eat many nuts? Nuts are good for protein, but if you are on spironolactone, not too many cause of potassium. Protein will only go so far though, you gonna get girl muscles.