12/15/2025
Have lingering Long COVID symptoms that just won’t go away? You might be overlooking an immune connection that really matters.
Most people think of Long COVID as one chronic condition — but what if part of what you’re experiencing is actually Mast Cell Activation Syndrome (MCAS) or a combination of both?
In our latest blog, we break down how mast cells — your immune system’s first responders — can stay overactive long after COVID infection, releasing inflammatory chemicals like histamine and contributing to symptoms like:
• Fatigue and brain fog
• Digestive issues
• Headaches and migraines
• Heart palpitations
• Dizziness and more
These symptoms can look just like long COVID — because research shows they overlap significantly, and mast cell dysfunction may be a key piece of the puzzle. 
If standard medicine hasn’t given you answers, this article could help you finally understand why your symptoms persist — and what a functional medicine approach looks like for real healing.
👉 Read the full blog here:
https://www.clarkwellnesstx.com/post/could-your-long-covid-actually-be-mast-cell-activation-syndrome
Let us know in the comments if this resonates with your experience — you’re not alone.
By Angelica Clark, PA-C, IFMCP • Clark Wellness • December 2025 • 9 min readIf you've been struggling with lingering symptoms months after recovering from COVID-19, you're not alone. Millions of Americans are experiencing what's commonly called "long haul or long COVID"—a frustrating constel...