a)
Splitting headache - Too much time in front of a screen
Black eye - Getting punched in the face
Sprained wrist - Moving your hand too far
Travel sickness - Travelling
Pulled muscle - Straining your muscles
Food poisoning - Eating rotten food
Sore eye - Too much time in front of a screen
Streaming cold - Drinking cold water
Nose bleed - Being out in the sun too long