Brief Answer:
No, it's not normal

Detailed Answer:
Hello XXXXXXX welcome to HCM..
I thank you for posting your query here and I'm definitely going to help you out..

I being a surgeon, we encounter so many such cases day in and day out.
I read your question completely and have understood it well enough.

I will analyze all your points and provide necessary explanation and how to go about..

1. Passing gas or flatus that we call in medical terms through vagina is abnormal.
Yes.. And it needs further evaluation.

2. Most common causes for such symptoms are
A. Radiation
B. Iatrogenic, meaning any surgeries involving rectum, bladder, vagina etc
C. Tuberculosis
D. Malignancy.

3. In 26 years, malignancy is unlikely.
Tell me, did you undergo any surgical procedures or child birth??

4. Suggest you following things..
A. Better to go for Trans Vaginal scan to see if there is fistula between Rectum and Vagina.

We can then, see how to go about..

But suggest you not to worry.
It is curable .
Take care...
Hope this helps you, in case you need any further assistance, please let me know..

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Brief Answer:
Yes, expected..

Detailed Answer:
Thank you XXXXXXX for getting back with your doubts..

Please note these following things..
1. Following sexual intercourse sometimes you do pass gas or flatus per vagina and its normal. But you say that, along with anal gas which creates doubt.

2. If it's occasional and doesn't bother you much then neglect it.
Else, please get Trans Vaginal Ultrasound to rule out Fistula if any.

Hope I have cleared your doubts, in case you are satisfied with the answer, kindly rate and close. Or, you can ask futher doubts.
Thank you, take care..

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