Welcome to HCM
We understand your concerns
I went through your query. You did consult your GPand he felt you are alright. Your GP might have came to a conclusion after taking so many factors into consideration like age, physical state, pathological evidences, general examination over and above stress
level you might have.
You have a child and you are trying to look after the kid very well. Alongwith this there might be other family duties and other things you take care of. I think you are stressed a lot and that created some tiredness
which resulted in light headedness and vertigo
feeling. Realizing it, you might have felt that it might be serious and became anxious. Anxiety
caused it to appear more often and made it worse. I sincerely hope so.
You went to your GPand he told you are alright. He knows you better than us. You should believe him for now and relax. Take proper rest for a couple of days and don't be serious about this problem. Be active mentally and take rest physically. If the symptoms persist even after this, consult GP again and he may refer you to a specialist.
Hope I am able to answer your query. Availble for further clarifications.