2 days post op Restylane injections in the corners of my mouth and chin, now have lumps. Is this normal? (photos)

There can be some swelling and/or lumps after filler injections which can last 1-2 weeks. You can apply firm pressure between two fingers for a few days, for 5 mins a time, in order to help decrease swelling and even out the lumps. If you're unhappy with your final results you can have it reversed with hyaluronidase and try a different technique next time. Best, Dr. Emer

Yes, swelling and/or lumps can be typical. Icing and cold compresses may give improvement. I would wait a full 2 weeks before judging the results, but this may be superficially placed filler. If it is after the two week wait, you can have the filler reversed with hyaluronidase.
I hope this helps!