hello and welcome to HCM,
Reading into your symptoms it is clear that in all probability you have developed an acute episode of tonsillitis
which could have been secondary to the throat infection
you had earlier and just recovered.
1. get an ENT consult as soon as possible and start on proper medications including antibiotics and anti inflammatory
2. If the pain is very severe then consider injectable for faster and better symptom control
3. Impress upon the doctor to also start anti reflux medications for better symptom control
4. Do not stop your diabetic medication at any cost and make sure you are in constant consultation with your dermatologist
during this time to ensure a proper sugar control. This is important because if sugars are not controlled the it is difficult to control your infection and vice versa.
take only warm fluids and avoid spicy or oily food
get well soon
Dr Sriram Nathan