Related by context. Frequent words. (Click for all words.) 62 shortness 59 breathing difficulties 58 abdominal pain 56 dizziness 56 angina 55 vomiting 55 backache 55 sore throat 55 palpitations 55 muscle cramps 54 chest pains 54 stomach ache 54 nausea 54 difficulty breathing 54 severe abdominal pain 54 syncope 53 dyspnea 52 abdominal pains 52 fainting 52 respiratory distress 51 persistent cough 51 constipation 51 sinusitis 51 wheezing 51 symptoms 51 numbness 51 migraine 51 tiredness 50 stuffy nose 50 fluid retention 50 stomachache 49 nausea vomiting 49 chronic cough 49 insomnia 49 rapid heartbeat 49 asthma 49 vertigo 49 jaundice 49 hypotension 49 lightheadedness 49 tingling 48 respiratory symptoms 48 daytime sleepiness 48 drowsiness 48 sleeplessness 47 body aches 47 pulmonary edema 47 dyspepsia 47 fever cough 47 hot flushes 47 respiratory 47 asthmatics 47 nasal congestion 47 asthmatic 47 indigestion 47 muscle aches 47 sleepiness 47 neuropathy 46 migraines 46 viral fever 46 obstructive sleep apnea 46 itchy eyes 46 feeling unwell 46 renal failure 46 diarrhea 46 somnolence 46 bronchial 46 irritability 46 stomach aches 46 fevers 46 hallucinations 45 altitude sickness 45 lung function 45 COPD 45 feeling dizzy 45 sleep apnea 45 burning sensation 45 stomach pains 45 unstable angina 45 hypoglycemia 45 irregular heartbeat 45 unwell 45 pelvic pain 45 Nausea 45 acid reflux 45 snoring 44 emphysema 44 respiratory disorders 44 claustrophobia 44 breathing 44 stomach cramps 44 pneumonia 44 gastrointestinal symptoms 44 apnea 44 hypertension 44 excessive sweating 44 vomiting diarrhea 44 runny nose 44 fever headache 44 exertion 44 difficulty swallowing