Related by context. Frequent words. (Click for all words.) 73 difficulty breathing 64 shortness 64 chest pains 62 respiratory 61 sore throat 60 stomach pains 59 dizziness 58 lung infection 58 stomach cramps 58 vomiting 58 feeling unwell 58 bronchitis 57 abdominal pain 57 heat exhaustion 56 rashes 56 pneumonia 56 dehydration 55 respiratory infection 55 unwell 54 respiratory illnesses 54 respiratory illness 54 emphysema 53 symptoms 52 chronic lung 52 kidney failure 52 irregular heartbeat 52 fevers 51 sore throats 51 pancreatitis 51 internal bleeding 51 ailments 50 breathing 50 nausea vomiting 50 fainting 50 jaundice 50 asthma 49 diarrhea 49 body aches 49 blurred vision 49 smoke inhalation 49 renal failure 48 kidney stones 48 lung diseases 48 ear infection 48 numbness 48 organ failure 48 cramps 48 allergic reaction 47 muscle spasms 47 lung disease 47 asthmatic 47 hypothermia 47 respiratory infections 47 gastroenteritis 46 flulike symptoms 46 coughing 46 lung 46 colic 46 blood clot 46 viral infection 46 edema 46 acid reflux 46 aches 46 lungs 46 runny nose 46 severe diarrhea 46 severe burns 46 respiratory diseases 45 skin rash 45 appendicitis 45 indigestion 45 toxic fumes 45 nausea 45 blisters 45 cardiac arrest 45 heatstroke 44 sleeplessness 44 fainted 44 upper respiratory 44 facial injuries 44 tiredness 44 complications 44 illnesses 44 wheezing 44 hay fever 44 leg cramps 44 asthmatics 44 allergic reactions 44 headaches 44 fumes 44 carbon monoxide poisoning 43 excruciating pain 43 soreness 43 urinary tract infection 43 pulmonary embolism 43 chicken pox 43 sores 43 lung function 43 illness 43 drowsiness 43 migraines