You probably is suffering from thyroiditis
due to hashimotos disease. In this condition your thyroid is inflamed and swollen leading to your above symptoms.
If i were your treating physician I would have ordered for a complete blood count
, ESR and ultrasound
scan of neck to confirm the diagnosis. If the symptoms are severe i usually start them on short course steroids (1-2 weeks) and anlgesics. Most cases resolve in few days
Hope I have answered your query. If you have any further questions I will be happy to help
With warm regards,
Dr Ajish TP (MD,DM)