Is there a reason for the concentration switch? It'd be rare for me to hear about someone's concentration changing as opposed to just a reduction in their dose. I know you said your dose increased, but I don't know if that's an even substitution.
I would call your doctor, explain what you're experiencing, and ask to (1) increase your dose in the interim, and (2) go back to a 200mg/mL concentration.
What is your shot frequency? Mental health wise, it may be best to do it weekly if you are not already.