Our expert says:
It's impossible to tell yo the cause. If it's just that you are unfit, then the cause is that you are exercising too hard and you need to train easier, and back off a little bit. Don't push so hard from the beginning. If your'e trying to jog, rather walk. If you're doing classes, just back off. That's about the only advice I can give you, because i know nothing else of your situation.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.