Hi and welcome to HCM,thank you for your query.
I dont think this is related to your previous surgery. these glucose
finding are not something serious but it may require some medicines so consult your docto about it. Dizzyness
and tinitus can be caused by various neurologic and heart diseases,you need more deatiled work up if it persists. Liver
enzymes as well. As i said i would not related it to your ganglion
Wish you good health. Regards.