Yes, absolutely. The fatigue is very treatable. I have healed myself completely with supplementation and diet. You must eat anti-inflammatory as well as low histamine. Following the MCAS protocol works well for this. You can take histamine blockers on a short term basis to help with the symptoms, for instance Pepcid AC (H2 blocker) as well as Claritin (H1 blocker). My supplement list is extensive but it worked. I would be happy to post it here, if you are interested. It is VERY possible to heal -- please know that and spread the knowledge.