Hello and welcome to HCM
spells, one tends to develop fast breathing, palpitaions (fast heart beat), sweating etc.
However, anxiety spells are usually short lasting. But if the symptoms are continous then you need to consult your physician.
there are many causes of laboured breathing and fast heart rate
It could be due to lung or heart disease
Both the systems need to be examined to rule out any pathology.
You need to get a few investigations done- X-ray chest and an ECG.
Thanks and take care
Dr Shailja P Wahal