First important thing I would like to inform you is that there are no treatment for diabetes
in the Unani medicine or Ayurveda. They can just at most supplement the main drug therapy and that too under observation. They claim to treat many diseases completely but there is nothing like that.
So I request you to kindly start your treatment from some doctor for your diabetes as fast as possible before it is too much deteriorated. Another important thing to understand regarding diabetes is that this is a life long disease and you have to take the medication and regular diet accordingly to keep it under control. If you maintain it properly you life will be normal. So start the diabetic medication and take that regularly.
As far as the problems associated with the medication is there you can talk to you doctor to change the medications which suits you the best. There are many different types of medication available for the diabetes and the drugs which suits you most can be selected and you can stick with that. Apart from medication you have to take care of your diet also.
Thanks and take care.