Is it safe to drink cider that s been left opened for almost two months?

About almost two months ago I filled a plastic water bottle with apple cider (and added a shot of whisky) and then lost it. I just found it and I really don't want to waste it but I'm scared that I'll get sick. I don't care about how it tastes, I just want to know if I'll be okay or not. I can't really tell if it smells okay because all alcohol smells kinda nasty to me, and I haven't tasted it yet. There's lots of tiny specks floating in it but only when I look closely. How likely is it that it's safe to drink?