I was recently diagnosed with Hyperthyroidism.
One morning, my heart started to race (palpitations) a few minutes after mtly breakfast.
For months I had been very weak for some hours in the afternoon and my eyes were sensitive to light.
However, my breathing was sometimes difficult. I was using Salbutamol.
For the weakness, one doctor had thought my blood sugar was the problem but others disagreed.
They said it was not possible to have such symptoms unless I had been diabetic for a long time.
This is to alert some who feel difficult breathing, to please check your Thyroid function.