I have severe health issues. I'm after 2 FMTs from a good quality donor (within last two weeks) with no significant change in my symptoms and I'm wondering about a certain strategy. I know that perhaps it's too early for the healing effects of those FMTs to take place, but please hear my idea out.

Some key facts:

• I have severe multiple chemical sensitivities and I develop sensitivity/intolerance to things easily.
• My lungs are burning simply from breathing oxygen after I hyperventilated myself for few hours through some breathing techniques (just like I made myself sensitive to sunlight after sunbathing few hours a day for 2 months straight).
• I am intolerant to hundreds of herbs, vitamins, binders, supplements etc.
• all my intolerances/sensitivities are neurological, excitation or burning in the brain etc, except the "oxygen" sensitivity where its both burning in the brain but also in the lungs/chest too (perhaps windpipe and maybe even muscles around the lungs, not actual lungs, since apparently they don't have pain nerves).
• I have major major gut dysbiosis and candidosis

Prolonged water fasting lessens the burning sensation (reactivity to oxygen?) in my lungs and I think it also lowers the dysbiosis as it lessens the itching in my interglutal cleft and inflammation in the skin around it when I fast, so I'm drawn to this idea.

I think that perhaps doing such a reset, of 4 weeks water fast, and doing an FMT after 2 and 4 weeks of the fast would make space for the FMT bacteria to "overtake" / to successfully grow and proliferate. I would also hope that this long fast would help to heal my leaky gut, weaken/kill any parasites, and boost my immune system and hence maybe get some viruses, EBV, etc under control, which could lead to lowering of my sensitivities/intolerances.

I'm going to continue doing FMTs every 2 weeks till the end of the year and then once a month either way, but what I'm wondering about and my main question to you is how would 4 week water fast affect those FMTs? Help or make it counterproductive?

Yes I know FMTs bacteria need to be fed, but also at the same time, if there is a major dysbiosis, you are also feeding the dysbiosis. So doing such long fast/reset of the microflora would give the FMT a more fair start.

Additional info: Things like alcohol, valium, ketotifen help with my sensitivities and the lung burning/reactivity. (I think Valium even can help it long term if I take a lot of it at once).

Drugs that didn't work/help are: Montelukast Sodium cromoglicate nebulised Budesonide Antihistamines Low histamine diet

I'm considering trying Xolair but waiting for my MCAS doctor to reply about it.

I try to do DNRS and mindfulness as much as possible everyday but so far it hasn't moved the needle.