Hi afiya4health!
I think you are experiencing significant (but awesome) die off from yeast/fungus in muscles. I have had the same experience so I would stick with the Fluconazole/diflucan but increase detox as much as possible. Will be good to increase circulation (like walking) and dry brushing. Drink lots of water.
Also -if you are on the antifungal for more than 4 wks be sure to have your liver enzyme levels checked. Some medications like this systemic antifungal are hard for the liver to metabolize. Milk thistle seed and burdock root are good for controlling the enzymes.
Hope that helps. Here is more info about
yeast/fungus:
www.healingwell.com/community/default.aspx?f=30&m=1606610&g=3644275#m3644275-p