Hello @TeamYouTube. I just noticed my account was subscribed to many random channels i dont recall doing so. I dont know if this is a bug, or if my account is being used in a foreign device, but i extremely doubt the second option. I'm currently on a count of 26.
Just to confirm, do you see videos for that channel in your subs feed? Does it appear you’re subscribed anywhere else? Also, try disabling any add-ons and extensions and check if that works. Keep us posted.