Losing followers at a rate of 1000 per week?


I am starting to lose over 1000 followers a week…(I had 90,000 followers 3 weeks ago and now have 87832).

Lots of my followers tweet me asking me to re-follow them because twitter randomly unfollowed me. They tell me it was not them that unfollowed me.

Can anyone advise if this is a bug / hack or whatever…it’s starting to get a bit annoying!