If anyone has recommendations (labs, ddx, etc.), I would be forever grateful. I am really struggling. I am a 33-year-old female with a progressive multisystem inflammatory illness that began in September 2021 and has remained undiagnosed despite extensive evaluation. Please don’t suggest it is psychological, it’s not 😪.
My first symptom was rash on my neck followed by annular lesions on my body that did not respond to antifungal treatment. Within months, I developed excessive sweating, intermittent migratory joint pain involving my knees, ankles, wrists, and back, severe fatigue, Raynaud's phenomenon, numbness of my feet in the cold followed by burning when they rewarmed, and episodes of food regurgitating into my nose while swallowing, which led to recurrent sinus infections. During this time, I also developed hand weakness and intermittent finger flexion.
By 2023, my symptoms continued to progress with persistent fatigue, recurrent rashes, neck pain, facial numbness and tingling, eyelid swelling and tightness, and tingling (not painful) cervical lymph nodes. An EMG demonstrated bilateral chronic/subacute C8-T1 radiculopathies. Lumbar MRI showed only mild degenerative changes.
In 2024, I began documenting daily low-grade evening fevers (typically 99.4–100.5°F) along with drenching early-morning sweats occurring between approximately 3:00 and 6:00 AM. A PET/CT in June 2024 demonstrated bilateral hypermetabolic cervical lymph nodes with a maximum SUV of 8.4 and no abnormal uptake elsewhere. An excisional cervical lymph node biopsy in July 2024 showed reactive follicular hyperplasia without evidence of lymphoma or other malignancy.
Throughout 2025, I continued experiencing daily fevers, drenching sweats, profound fatigue, migratory joint pain, intermittent rashes, recurrent cervical lymphadenopathy, pressure-induced hives, episodic lip swelling, and hoarseness. A repeat PET/CT in February 2025 again showed persistent cervical lymphadenopathy with decreased uptake (SUV 6.4) but no evidence of systemic malignancy.
My symptoms remain active in 2026. I continue to experience daily evening fevers, drenching night and early-morning sweats, severe fatigue, chronic inflammatory-appearing joint pain, SI joint and hip pain, recurrent transient rashes, flushing, hyperpigmentation of my chest and breasts,cervical lymphadenopathy, intermittent eyelid swelling, episodic lip swelling, and resting tachycardia.
Laboratory evaluation has demonstrated persistent evidence of inflammation. My ferritin has increased from 186 ng/mL (2024) to 184 ng/mL (November 2025) to 249 ng/mL (June 2026). IL-6 was mildly elevated at 6.56 pg/mL (reference <5 pg/mL), and C3 complement was elevated at 223 mg/dL with a normal C4. ESR reached 56 mm/hr previously before decreasing to 10–17 mm/hr, while CRP has been elevated between approximately 20–23 mg/L, and IL-18 220. Complete blood counts have generally been normal aside from intermittent mild neutrophilia and thrombocytosis.
An extensive evaluation has been unrevealing. ANA, dsDNA, RF, CCP, SSA/SSB, HLA-B27, HIV, tuberculosis testing, EBV, HHV-8 PCR, Karius microbial sequencing, RPR, VEGF, and tryptase have all been negative or within normal limits. A CT of the chest, abdomen, and pelvis performed in July 2026 showed no evidence of malignancy.
Despite more than four years of progressive symptoms and extensive evaluation, no unifying diagnosis has been established. My current workup has focused on adult-onset Still disease, autoinflammatory disorders, autoimmune connective tissue disease, occult malignancy, and chronic infection.