Have i really made a mess of my tooth extraction?

I had two molars out three nights ago. I was told not to smoke but I had to. I had 2 roll ups during the first 24 hours but rinsed my mouth out afterwards. I also had scrambled egg on toast the following morning and i have since read that I shouldnt have been eating solids. The pain was abysmal last night and it took forever to finally get some relief from it. Today I have been taking pain killers but havent noticed it being as bad (or maybe Im just gettting used to it). Do you think if I have pain 4 days on then it may be a dry socket or I have an infection or is it normal to have some pain this far in?