What you describe suggests that you have trouble breathing in and that suggests vocal cord spasms. This can occur with no apparent cause, in response to allergens or in response to what is called gastroesophageal reflux disease (GERD) with aspiration of gastric contrasts into your larynx, commonly called the voice box. This could also be asthma as the combination of nocturnal and exercise related respiratory distress could also provide an explanation of your symptoms.
It could be helpful to be examined, during one of these attacks. This would include direct examination of your vocal cords by a doctor using a fiberoptic laryngoscope in an emergency room.
As an afterthought, you could also be having anxiety and these could be panic attacks.
Good luck.
please can you help my grandson is 21 days old he has a whinning noise when he is being fed/either bottle or breastfeed- can you suggest what is this- will he grow out of this or what - but the noise stops once his over with his feed. what can it be