Does anyone know if there is a link between hypoglycemia and hypothyroidism? I have been hypoglycemic for many years and recently it has gotten worse.Sometimes I felt so disoriented and weak that I wondered if there was more going on. I was also having heart palpitations. My doctor ordered a blood test to check on my thyroid levels. Turns out that I am hypothyroid. My TSH level was 10.7. I have been on 75 mcg of Synthroid for 6 weeks and just went back to do another blood test and now my TSH level is .17. I guess it takes time to find the proper dosage. Any information would be helpful. Thanks.