Concerned about ovarian cancer

On Monday I developed explosive wind. By Tuesday I had a constant pain on the lower left abdomen with bloating, more gas and belching. Wednesday it seemed to ease so I didn't go to the GP. Today (Thursday) I feel a lot better though there is still a little wind and a bit of an ache so I don't know whether to get checked out or not.. 

On Sunday and Monday I had started a New Year diet. Both those days I had a teaspoon of cumin in natural yoghurt which is supposed to help with fat loss. Monday I had an omelette with cheese and spinach filling. Could it simply be a reaction to these foods?

Hopefully it is just 'gas' without a sinister cause.  But can gas last this long? I'm late 60s so not IBS.

It seems this can be a symptom of so many things but it doesn't fit the full description of anything in particular. That said I know symptoms don't always go by the book. I once had a perforated appendix. The first symptom was a short lived gassy pain 3 days before and when I did end up in hospital the pain was on the left not the right!

One of the closer matches is ovarian cancer but would that present itself in an acute way?

I don't want to come across as paranoid to the GP because if and when something does go wrong, you need them to believe you and act on it.

I've just seen there is a discussion for ovarian cancer so moving this there thanks.

New diet definitely effects the system.  Cramps . Full of wind omg definitely.    But if you walk it usual shifts the wind down very quick and the relief is great

Id say go. Who cares what the gp thinkd its your health ask for a transvaginal us if your scared of that ask for a ct scan its not as invasive. It could also just be a cyst that can cause similar issues but with your age i would go just for a peace of mind.