Please get a full mouth xray / opg . This will help in getting some more clarity.pls check for other medical conditions which affect oral health .

Please get an X Ray done to find out if the tooth roots have been completely removed. If they're completely removed then most possibly you are suffering from what is called a dry socket caused by dislodgement of post extraction blood clot or by deficient blood supply to socket due to low levels of haemoglobin due to your age.

Pain might be neurogenic due to resorted ridges. Surgery might be required or wearing a denture can also solve the problem

Hello Without clinical and radiographically examination it's very difficult to come to any conclusion. I'm sorry but you need to visit for any further clarification.