As home remedy you may try warm saline gargles for sore throat. Hot Water Fomentation (with help of hot water bag or heating pad) for neck stiffness may offer relief. A cup of Tea with a cardamom (Green Elaichi) also helps relieve soreness. The headache seems to be more due to apprehension since nobody has diagnosed or somebody may have suggested a possible diagnosis. I would suggest to divert your attention until it is proved by investigations because these are very rare possibilities. However, please seek medical advise from a registered licensed ENT Consultant there (close to your residence) for confirmation and treatment of illness. You may try say a brief prayer or take to some light leisure activity like sport, painting, music etc. to divert attention and release the undue tension and cheer up your mood.