astroman, I guess the only thing to help the autoimmune part of it is getting the lyme calmed down. And mold and whatever else is wrong. Somehow in my mind, I believe if all of these things calm down, then my body won't have to attack itself anymore.
If Hashi was brought on within the last 5 years and at the same time as lyme, there might be a good chance. Cross your fingers. Also depends how physically damaged your thyroid is from the antibody attack. Even staying at current thyroid med level is better than increasing it as time goes on.
Diet is huge too with autoimmune. Remember, most Hashi and or other autoimmune people don't have and tick infections, yet still have autoimmune. There is a whole side of autoimmune and th1/th2/diet that is not exposed here. And gene reflection, there are thyroid disorder genes, that makes it more likely to happen.
We all eat. Depending what we eat obviously matters. I retest immune functions after every diet change and hashi retest antibodies to keep track of what works or doesn't - my current focus.