jet lag, tiredness, homesickness, fatigue, hangovers, sleeplessness, sore throat, exertions, colds, stagefright, rustiness, shin splints, altitude sickness, stage fright, niggles, seasickness, grogginess, boredom, redeye flight, glandular fever, tonsillitis, insomnia, exhaustion, bronchitis, wooziness, layovers, viral infection, sleepiness, soreness, fluey, tonsilitis, hayfever, sickness, cabin fever, aches, nap, drowsiness, blahs, backache, clamminess, sweating, drowse, cramps, fogginess, sunburn, lethargy, mugginess, sogginess, hay fever, tendonitis, airsickness, tiring, achy, mononucleosis, sleep, collywobbles, acclimatization, yips, motion sickness, redeye, staleness, lumbago, sweatiness, oversleeping, dehydration, carbo loading, discomfort, crabbiness, laryngitis, weariness, catnaps, kip, grumpiness, jitteriness, lateness, cravings, earache, indigestion, illness, auditory hallucination, stomach ache, muscle spasm, rust, twinges, fidgetiness, symptoms, vertigo, toothache, humidity, nausea, sluggishness, physio, tardiness, gremlins, itchiness, zzz, psychosomatic, tendinitis, timezone, stiffness, skive, stomachache