I am experiencing tiny red dots on inner upper roof of mouth with very little white patch & irritation & can see tonsil stone on one side..?

Oral Surgeon. Hard to say without examination and history (eg tobacco and alcohol consumption.
Best advice is to see an oral & maxillofacial surgeon for examination.
Need exam. What you describe requires an examination to determine if it is normal or abnormal. Solutions could involve many approaches depending on many variables, for example, do you smoke? Is there pain? We need more info to help you.
Likely viral. Little red spots on the hard palate are likely to be viral especially when you factor in tonsils too. Keep hydrated and use oragel if needed for pain. Likely to clear up completely in 7-10 days. If not then a trip to the dentist or doctor would be in order.