welcome in H.C.M.
I have gone through your query regarding acute pain in throat from today morning which is giving difficulty in swallowing.
As you said you are taking anti depressant
, I think it is not concern with your treatment of depression
at all. This is simply an acute upper respiratory tract
For relief you may take-
1- Tab Paracetamol
3- Warm saline gargling.
I hope this will help you otherwise clinical examination by an ENT doctor will become necessary.