side effects after implanon removal?

Jess🌻
Had my implanon taken out on Wednesday (4 days ago) and went straight onto the pill. It's been hell. I've been on and off nauseous, headaches, mood swings and I'm feeling a little depressed (history of depression)
Is this normal? 
I just want to be assured that side effects after removal, although going onto the pill, is kind of normal. I feel so sick constantly ☹️