The list of signs and symptoms mentioned in various sources for Decompression sickness includes the 22 symptoms listed below: 1  Joint pains. 2  Headache. 3  Dizziness. 4  Chest pain. 5  Abdominal pain.6  Breathing difficulty. 7  Unconsciousness. 8  Abnormal sensations.eview the available symptom checkers for these symptoms of Decompression sickness: 1  Headache -- Symptom Checker. 2  Abdominal pain -- Symptom Checker. 3  Breathing difficulty -- Symptom Checker.