Two weeks ago I was unwell breathless & dizzy I had had a gastroscapy two days earlier & so medical staff where I was on a day out called an ambulance. At the hospital they said I had an infection bloods showed white cells were raised, they treated me with strong antibiotics. They also did chest & stomach X-rays & abdominal scan, & ECG all were normal. When I came home three days later I was still feeling very unwell mainly due to weird episodes my GP said could be post infection/viral anxiety attacks. I have had another ECG & the t trace was showed abnormalities which they said could be due to thyroid. I had blood test for that but it was negative. At the moment my main symptom is irregular heart beat it doesn't appear to be over 100 beats per min but is defiantly not right. It is like that most if not all the time but I notice it more when trying to sleep.
If the t trace on ECG showed this abnormality & its not thyroid what else could it be??