Bendy Bodies with Dr. Linda Bluestein

When POTS Isn’t the Whole Story: What Doctors Often Miss | Office Hours (Ep 185)

10 snips
Feb 26, 2026
A deep look at conditions that mimic or worsen POTS and why treating the pattern may miss root causes. Short explanations cover nutrient gaps like B12 and thiamine, hormonal and endocrine contributors, and mast cell issues. The conversation highlights sleep, post-infectious problems, neurologic or autoimmune drivers, medication effects, and red flags that should prompt a broader workup.
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INSIGHT

POTS Is A Pattern Not A Diagnosis

  • POTS is a physiologic pattern, not always a root cause, and multiple different conditions can produce the same autonomic output.
  • Labeling a fast heart rate as POTS without seeking drivers stalls progress because treatment must target underlying causes.
ADVICE

Park And Prioritize Tests To Avoid Ping Pong

  • Avoid medical ping-pong by prioritizing and pacing investigations; park lower-priority possibilities and revisit them if you stall on treatment.
  • Make a list of tests/options and set a timeline to re-evaluate rather than chasing every lead immediately.
ADVICE

Test For Thiamine When POTS Treatment Fails

  • Consider thiamine (B1) deficiency when POTS symptoms include extreme exercise intolerance, GI dysmotility, or minimal response to standard POTS therapy.
  • Order whole blood thiamine or erythrocyte transketolase activity when suspicion is high because serum tests can miss functional deficiency.
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