Hi about a year ago I had three sore throats in six weeks a mix of bacterial and viral, ever since I have had small red dots on the back of my tongue?

Red dots. Many many many reasons for "red dots." Most of them either normal or benign. Diagnosis requires examination and, if suspicious, biopsy. Su your General Dentist, Primary Care Physician, an Oral Medicine or Oral Pathology Specialist, an ENT specialist, or a specialist Oral Surgeon to begin the diagnostic process.
Red dots. Dots on the back of the tongue are normal;larger taste buds. If you are worried have your dentist or oral surgeon/md take a look. 5 min for piece of mind. Go west ham united even though they are being relegated.