Question About Female Impotence, Please Advice

Hi, I got married 7 months bak and lived abroad. i was a virgin b4 marriage.so insertion of his penis was very painful.also becoz no lubricants were used for the 1st 2 months of marrige... in b/w i got a vaginal infection. he took me to a gynae after 2 months.she recommeneded KY Jelly and also cured my infection.but it caused lot of itching.so i discontinued it.but it never eased the painful insertion. in between he tried anal sex that became successful after 1 month attempt...that was also painful initially.and we had it regularly. meanwhile, this infection recurred.so my hubby asked me to get it cured wenever i go to india.so for 5 months we only had anal sex but no vaginal sex and the infection till my visit to india. after a lot of research in india,i discovered that coconut oilsuited me as i applied it in my vagina and used sex toy that penetrated my vagina v.easily due to the oily effect. my hubby meanwhile told all hs family that i m impotent.and he doesnt want to live with me. please doctors tell me on the basis of above circumstances( as i am worried): 1. am i really impotent? 2. can impotent people have anal sex? since i have got a bad name in society...and they have used this ground in court case. 3. which tests can prove my impotency/potency? they also say i have som "incurable disease" ,ie,the infection, since it had recurred.they call me baanjh etc.