A few of us still around since the GMJ days, mate.
Good to see you found your way back.
The forum has been through a few name changes but the ethos always remains the same.
I'm no Doctor but does sound like an infection, particularly if antibiotics are improving the situation.
Drink plenty water obviously & possibly reduce oral anavar, something I would consider.
I enjoy it, it really is that simple for me.
Been training for 30 years, never had an issue with motivation. I still look forward to going to the gym.
It's a way of life for me.