Hi and welcome.
The change in your meds has clearly had an impact. And I'm sorry to hear about your eye and the PTSD. That isn't going to be helping AT ALL (stress, disrupted sleep, etc.)
But the other factor is diet. And it's also the quickest and easiest to alter.
Is it possible that, with all the other stuff you have had going on, that your diet has changed? Especially with Christmas food around at the moment?
I would definitely have a word with your doc - raised BG needs their input.
But I would combine that with a long hard look at what you are eating. Carb content, bread, biscuits, potato, rice and pasta... Going low carb has been great for my blood glucose levels.
Please let us know how you get on.