I just had my stitches removed from tooth extraction. Thank god. So the question is can I drink alcohol again?

Likely. Ask the surgeon to be sure, but you should be ok for alcohol -- in moderation. If it feels bad at extraction sites, then stop and give it a few more days. Good luck.
Likely yes. Just ask your doctor. If you're not on medication and if the gingiva has healed, then alcohol should not affect the extraction sites.