This is Dr. David
yes, if you are having a cold, this can cause weight loss and can cause mild elevation of inflammatory markers and ALT and AST and calcium
that is good your daughter is an MD
I would get a copy of your blood testing.
I would be happy to review your levels with you.
make sure you at least drink plenty of fluids and water and tea with honey and lemon and gadorade fluids to stay hydrated if you are not eating much.
make sure you get a flu shot this year
I'm not sure I would run in the 1/2 marathon since you are still recovering.
let me know if you have other questions.
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