shirley might help if you let people know what your disability is as with out this info they are limited to know what to tell you. I cant help as i have never been to borovets but my husband was surprised when we went to bansko to see no disabled skiers.
Shirley,
If your disability doesent allow you to ski,you could possibly get to some of the cafies on the slopes by chair lifts and join in the fun there,ive had many a good day spent at the cafe,especially if its sunny,sunbathing with a hot brandy,you cant beat it !!!! Once saw a skiier with an artificial leg!!! full credit to the guy !!