Should I be worried ?

I had my son 8 days ago. Perfect birth they sent me home 3 hours after I gave birth. No stitches but 2 piles (hemeroids). The after pains had me crying for the first 3 days but after that I was fine. I was moving and picking up my toddler and even driving but today I have woke up and my eyes were swollen like I had been crying which I hadn't. The bleeding was fluctuating everyday but it was fine. Throughout the day I seem to have gotten worse feeling nauseous and just feeling wrong all day like when I first gave birth. I can barely walk and last night I had a terrible pain in my left side and I tries to ignore it by sleeping. Well today I have terrible back pain and pressure in my bum. I'm just worried because I am walking like I have literally given birth. And my insides feel like they have been in a washing machine and the back pain is running down my legs and is especially bad in my calves.

Just to add I don't have a fever

Could it be I just pushed myself too hard or I have a cold or should I be calling my doctor?

I was hoping one of you ladies could help me out