Hi Becca,
There is absolutely treatment for fibro beyond lyrica and the like. Stanford University has done studies on LDN for fibro and had good results.
Low Dose Naltrexone for Fibromyalgia | Systems Neuroscience and Pain Lab | Stanford Medicine
Some antidepressants such as Savella are also used for fibro pain.
While these new meds may not cure the problem the LDN certainly addresses the neuro-inflammation.
One of the number one recommendations for fibro is getting exercise. Anything gentle, like the pool which your foot could tolerate is great.
Keep up the fight. It is good you have new information and can pursue new ways of addressing your fatigue.
Sending hugs,