Realistically, how many months into the diet should I be feeling well enough roughly to start exercising again in your experience? Right now the things that are stopping me is shortness of breath, dizziness and sore throat which could be a thrush problem.
If you still have mold near you, the sore throat sounds pretty likely to be connected to that. As for working out, I would recommend you don’t prioritize it for now. Your body needs that energy for healing. Taking short or slow walks is nice and can help with constipation, but it was a good two and a half or three months for me before I felt like doing much activity beyond normal daily requirements (for work, housework, etc). Depending on how your body responds to treatment, that timeline could vary pretty dramatically.