I too have had this issues because of these infections, sometimes it's our diet that does this (low carb like Long Journey said) or because our pancreas is affected by these diseases. I'm glad your doctor thought to test you, so you know where you are and what's going on.
If you are concerned about
, or already are, under weight, then I would encourage you to start including high calorie, yet still healthy, foods into your diet. Protein shakes, nut butters, avocados, olive and coconut oil and so on.
Herb only treatment for Lyme & Bart ended 12/11 - no active symptoms for 2 yrs -Herb only treatment for Babesia ended 12/12www.healingwell.com/community/default.aspx?f=30&m=2977364
Had Lyme, Bart, Babs, RMSF, Ehrlichia, Myco, Anaplasmosis, EBV
New Lyme case 8/2014 - Healed 1/31/15 - unknowingly had Asymptomatic Babs and Asymptomatic Bart, being treated now though (2/2016)