Related by context. Frequent words. (Click for all words.) 72 stomach bug 70 bronchitis 68 viral infection 68 strep throat 66 sore throat 63 mononucleosis 63 thigh injury 62 sprained ankle 62 calf injury 62 rib injury 62 groin strain 62 calf strain 61 groin injury 61 gastroenteritis 61 hamstring injury 60 ankle injury 60 Achilles injury 60 knee injury 59 dislocated shoulder 59 thigh strain 58 hamstring strain 57 strained hamstring 57 chicken pox 57 knee sprain 57 pneumonia 56 tendinitis 56 illness 56 muscle strain 55 bacterial infection 55 sprained knee 54 ailment 54 strained groin 54 abdominal strain 54 turf toe 54 spasms 54 bruised ribs 54 mild concussion 54 sore shoulder 54 hernia 54 sore hamstring 53 ankle sprain 53 stress fracture 53 flulike symptoms 52 broken rib 52 appendicitis 52 calf muscle 51 mumps 51 flu 50 staph infection 50 soreness 50 hip flexor 50 stiff neck 50 bone bruise 50 plantar fasciitis 50 broken collarbone 50 hamstring 49 infection 48 knee surgery 48 concussion 48 injury 48 bacterial meningitis 48 colds 48 torn ligament 48 stage fright 48 respiratory illness 48 abscess 48 sprain 48 sprained 48 groin 48 nagging injuries 47 ligament damage 47 sports hernia 47 cramps 47 allergic reaction 47 knee ligament 46 jaundice 46 meningitis 46 Achilles tendon 45 torn ACL 45 unwell 45 strained muscle 45 contusion 45 Hodgkin lymphoma 45 ankle 45 broken jaw 44 sinus 44 collapsed lung 44 sore 44 knee 44 breathing difficulties 44 irregular heartbeat 44 Achilles 44 sickness 44 blister 43 cyst 43 diarrhea 43 shin 43 blisters 43 niggles 42 migraine 42 vertigo