I had Covid in Jan 2021 and Long Covid hit afterwards. Covid was mild (as was the 2nd infection) but LC was really bad. At one point, the dr sent me straight to A and E as I could hardly walk and my breathing was terrible. Over time, it's gradually improved, but i was still suffering from terrible fatigue. Someone recommended Your Gut Plus - a probiotic blend. After one packet, my fatigue has almost gone. I won't know if I'm back to normal until I start taking long walks again, and it may be a coincidence, but I feel it's been a game changer. No affiliation to the manufacturer. I hope this helps someone.