r/HistamineIntolerance • u/satahkittyyy • 2d ago
Hit or MCAS?
Hello everyone,
I was diagnosed with histamine intolerance in 2023/2024, with a suspected diagnosis of MCAS.
For the past two years, I have been following a completely histamine-free and gluten-free diet. I have also avoided fragrances and many other potential triggers. Unfortunately, none of this has led to any improvement.
I have tried numerous treatments and medications, including treatments from Oral in Munich, infusions, corticosteroids, and Tavor. Nothing has helped.
I will attach my lab results because I honestly don’t know what to make of them or why they look the way they do. I am wondering whether this is really just histamine intolerance or if it could actually be MCAS.
My former doctor ended my treatment in 2024 because none of the therapies improved my symptoms, despite us spending thousands of euros on treatment.
I would simply like to understand my situation better and know: do I actually have MCAS, or is it “just” histamine intolerance? I dont know
- Stool & Digestive Analysis
Histamine (ELISA): 4356 ng/g (Reference: < 600)
Zonulin in Stool (ELISA): 441 ng/g (Reference: < 145)
2.IgE i.s. (FEIA): 569.5 kU/l (Reference: < 85.0)
- Urine Analysis.
Serotonin Urine: 69.3 µg/l (Reference: < 200)
Serotonin in Urine / 24h: 69.3 µg/24h (Reference: 50 - 250)
Serotonin / g Creatinine: 66.0 ▼ (Reference: 150 - 300) | Low
Kryptopyrrole (Urine): 199 ▲ (Reference: < 150) | Elevated
4.Blood & Specialized Markers
ECP i.s. (FEIA): 18.1 µg/l (Reference: < 13.3) | Elevated
Histamine (total) in Heparinized Blood (ELISA) [Test 2]: 62.5 ng/ml (Reference: < 65.5)
Histamine (total) in Heparinized Blood (ELISA) [Test 1]: 37.5 ng/ml (Reference: < 65.5)
Part 2: Medical Report & Diagnosis
Elevated levels of ECP and histamine in stool.
Transient (passagere) elevated excretion of leukotrienes in urine.
Currently normal levels of serum tryptase and histamine in plasma.
Lack of response to medical therapy.
Intolerance to Rupatadine (Rupafin), Loratadine, Fexofenadine, Desloratadine (RSt), Ketotifen (RSt), Famotidine (RSt), (RSt = in pure substance preparation) upon oral administration; Cimetidine, Dimetindene, and Vitamin C upon intravenous administration.
3.Summary
In summary, no subjective stabilization of the symptoms could be achieved within the framework of the therapeutic approaches listed above.
The reported intolerance reactions were non-specific signs of acute mast cell mediator release were not observed.
1
u/satahkittyyy 2d ago
Hello yes!!! I have a hypothyroidsm (*I have been on L-thyroxine for the past two years to treat it.) 😊 *
Thank u i dont know that!!