First of all I humbly request you please don’t feel any guilty. Make sure Religion Islam came to give us ease not trouble. Islam is a very flexible religion. We believe Allah is Just this is our Usool e Din says so Allah will not punish anyone out of injustice.
Now as for as Islamic laws(Shariat) concern in the case of doubts occurs in Namaz if it’s leads that person gets doubt again and again then he/she is called Kathurush shakk and for such person rules say that he/she has to ignore his/her shakk (doubt).
Therefore you are not supposed to repeat your any namaz.
This was what Islamic laws says.
Now I request you please at least one week behave yourself as nothing has happened with you and pray your namaz only once don’t repeat without any doubt I’m taking all your responsibility on my own shoulders that even if you feel that really you have released gas don’t repeat your namaz just only for one week .