Crushing Percocet bad?

Hey everyone. I had a c section on Friday and was prescribed ibuprofen and Percocet. I can't swallow pills and I swore the dr said it would be OK to crush the Percocet so that's what I've been doing the past few days. I noticed that it sometimes makes me more dizzy than other times and I read online to not crush Percocet because you can overdose. Well now I'm feeling super dizzy and tired again and I'm worried it's so severe because I crushed them up. Does anyone know anything about crushing them up?