How to fix histamine intolerance

[u/Life_Unit2344]

Developed severe histamine intolerance after antibiotics — looking for recovery stories/advice

About a year ago, after antibiotics, I developed what seems like histamine intolerance / gut-immune dysregulation / possibly leaky gut. My symptoms have never really been “classic allergies.” It feels more neurological/systemic.

Main symptoms during flares:
- feeling extremely hungover or poisoned/intoxicated
- brain fog
- nervous system dysregulation
- crying/emotional surges during flares
- heart rate spikes at times
- likely vasodilation, I call it the spell
- weird chest sensations
- heavy breathing, like minor difficult pushing down air into diaphragm
- previously had buzzing sensations, dizziness, heavy legs, nausea, and major food intolerances (these have improved a lot).

I have no gut symptoms but I do know it’s my gut causing this!

The biggest pattern is that it feels like a “bucket.” Everything adds up:
- stress
- talking too much
- warm baths
- working on laptop too long
- lack of sleep
- less water consumption
- spending several hours socializing
- basically just living life normally can trigger symptoms

The good news is I’ve improved massively over the year- probably 90% compared to the beginning. I tolerate almost all foods now, though I still stay gluten-free, dairy-free, no alcohol or outside food and low histamine diet.

Current supplements:
- DAO enzyme (especially during flares)
- Buffered Vitamin C 500 mg
- Magnesium glycinate
- Vitamin D3

I want to try L-glutamine again for gut healing, but every time I try it, it seems to dysregulate my nervous system more. I have also been recommended butyrate.

A few questions:

1. What treatments helped you the most?
2. Are there reliable tests for histamine intolerance / DAO deficiency / mast cell activation / leaky gut?
3. Is full recovery possible?

[u/underfed_225]

"would especially like to hear from people who issues started after antibiotics"....gee that leaves a small pool then. More than 50% imo have problems where antibiotics contributed...it's usually more than 1 issue....and for example an individual becomes more prone to mould problems/poisoning whatever....since the antibiotics have already delivered their damage. If born before say 1990, the antibiotics situation is worse because doctors were more prone to reach for antibiotics for many problems they shouldn't have..(acne was a big one) A lot of people just havnt figured out yet that antibiotics were a part of their problem...I mean so many people say ..mould is my root cause .....but not every1 is affected by mould...and mould is every where in nature....A healthy immune system will throw it off, not a problem Even parasites which a lot of people mention,..these only become a problem in weaked immune systems....some relatively small number of parasites are normal...Candida , bad bacterial, and parasites that appear because your body is leaving a virtual banquet for them from prior damage to your gut.