Low sugar after any kind of exercises

i don’t write often on this forum, but i’m 7 years involved in the Pfs. As i wrote in another thread, 3 years ago i my chaged diet into paleo and it upset all my body methabolism.

I first experienced better management of complex sugars (pasta, etc.), then more and more depression and, in the following months, slow, exhausted metabolism. Now after three years, these symptoms are at their peak and I think it’s because I no longer metabolize sugars properly. For example, after physical activity of any kind I feel light-headed and dizzy. Obviously my stools are always soft and unformed.

Is there anyone who has experienced this? Any advices ?