What are normal side effects 1-2 weeks post dental implant?

I received a dental implant on #9 including extraction, bone graft and the implant. I was prescribed antibiotics and ibuprofen for a week. It's one week post-op and I am still experiencing minor headaches (in my temples), sporadic dizziness, & nausea. I also worked out and felt extremely light headed. This is abnormal for me and I would've expected this to go away by now. Zero pain on the implant. When should these side effects subside? Do you think it's a sinus-related issue? Thanks!