Has anyone noticed that when taking Levoxyl you have some irritat...

Has anyone noticed that when taking Levoxyl you have some irritation after urination. I seem to have a nervous feeling in the urinary tract and after urinating it seems like I have a sensation of irritation. I have had tests for infections but nothing showed up, I am considered Hyperthyroid because of my dose of 150 mcg which is where Endo. wants me to be. I would appreciate anyone who has any input. I do not know if levoxyl makes your urine more acidic or not.