Sudden Faint and fell down. Vaccination?

Two days before in evening, my mom (age:60) ate fried arvi (Greenleaf vegetable)  as she was feeling empty stomach. Suddenly she felt as if food is stuck while passing through the chest and she got very much panic and suddenly she fell down on the floor she didn't even realise how she fell down automatically.She broke her artificial teeth and also bleed from the mouth and nose also got hurt as she fell down on the mouth base. Me & my father immediately went to the doctor he check the BP, blood sugar and ECG at the same time all the reports were normal then he give the the IV fluid with few antibiotics for 2 hours and then he prescribed for the the endoscopy and CT scan contrast for brain. PLEASE ADVISE. Need to inform here that she took covishield vaccine on 20th March & on 26th March she fell down. We don't know is there any relation between covid vaccine and falling down? Also as she fell down on the floor so doctor give it tetanus vaccine is it safe to have post covid vaccination?