Related by context. Frequent words. (Click for all words.) 71 sore throat 68 viral infection 65 pneumonia 63 respiratory illness 60 mononucleosis 58 breathing difficulties 58 chicken pox 57 emphysema 57 illness 55 asthma 55 colds 54 appendicitis 54 bacterial infection 53 tendinitis 53 ailment 53 respiratory infections 52 flulike symptoms 51 flu 51 sprained ankle 51 cramps 51 ailments 50 sickness 50 lung disease 50 stiff neck 50 rib injury 49 wheezing 49 sinus 49 nagging injuries 49 calf strain 49 respiratory 48 calf injury 48 meningitis 48 hamstring injury 48 groin injury 48 heat exhaustion 48 diarrhea 48 asthmatic 48 spasms 48 thigh injury 47 coughing 47 groin strain 47 strained groin 47 irregular heartbeat 47 soreness 46 sore shoulder 46 Achilles injury 46 vertigo 46 illnesses 46 fevers 46 knee injury 46 strained hamstring 46 sore hamstring 46 dislocated shoulder 46 dehydration 46 ankle injury 46 dizziness 46 allergies 46 ear infections 46 migraines 46 indigestion 45 chest pains 45 abdominal strain 45 respiratory diseases 45 migraine 45 jaundice 45 broken rib 45 staph infection 45 encephalitis 45 allergic reaction 45 collapsed lung 44 mumps 44 mild concussion 44 abdominal pain 44 infection 44 influenza 43 symptoms 43 lung 43 coughs 43 cough 43 hamstring strain 43 vomiting 43 calf muscle 42 blister 42 inflammation 42 jet lag 42 unwell 42 injury 42 aches 42 shortness 42 sprained knee 42 arthritis 42 knee sprain 42 tiredness 42 Illness 42 whooping cough 42 rashes 42 blurred vision 42 strained muscle 41 blisters 41 blood clot 41 sore