Our Services
Chronic Fatigue
Chronic fatigue can be complex and deeply disruptive to daily life. At Chronic Illness Solution, we focus on identifying underlying contributors such as gut dysfunction, immune imbalance, infections, environmental exposures, and metabolic stress to create personalized treatment plans that support sustainable energy and whole-body healing.
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Mold-related Illness
Mold exposure can trigger widespread symptoms affecting the immune, neurological, and gastrointestinal systems. We take a comprehensive approach to mold-related illness by addressing toxic burden, inflammation, and underlying susceptibilities while supporting the body’s natural detoxification and recovery processes.
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Gastrointestinal Disorders
Digestive health is central to overall wellness and chronic disease prevention. At Chronic Illness Solution, we specialize in identifying and treating root causes of gastrointestinal disorders—including dysbiosis, SIBO/SIFO, food sensitivities, and gut permeability—to restore balance, improve digestion, and support systemic health.
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Virtual Service for Chronic Illness in Arizona
Welcome to Chronic Illness Solution. We specialize in a root-cause, integrative approach to chronic and complex illness, focusing on restoring balance to the body rather than simply managing symptoms. Guided by the understanding that many conditions begin in the gastrointestinal tract, our care emphasizes microbiome health, gut integrity, and identifying underlying bacterial, fungal, or environmental contributors to illness.
At Chronic Illness Solution, we provide personalized, whole-body treatment for chronic fatigue, gastrointestinal disorders, mold-related and environmental illness, mast cell activation issues, and chemical sensitivities—supporting patients throughout Arizona on their path to lasting wellness.



Lina Kay
PA-C, MS
Lina Kay has been practicing medicine for 20 years. She graduated from the Jefferson College of Health Sciences from Roanoke, Virginia with a degree in Physician Assistant studies. She has always been passionate about integrative medicine and became certified in functional medicine in 2022.
“Disease oftentimes begins in the GI tract”, hence she strongly believes in balancing the microbiome, addressing leaky gut, and treating underline bacterial or fungal overgrowth, which could be contributing factor to chronic illness. Although practicing all health modalities, she specializes in gastrointestinal disorders and environmental medicine. She has extensive experience in the treatment of SIBO/SIFO, IBS, histamine intolerance, inflammatory disorders, chronic fatigue syndrome, and mold illness.
Using integrative medicine to overcome her own health challenges, Lina now focuses on helping others in their healing journey.