What Causes Difficulty In Breathing While Asleep And Pain In The Stomach ?

Hi, I ve been experiencing a few uncommom things recently like not being able to breath while sleeping. A sudden jolt I wake up trying to catch my breath. Restlessness, can t fall asleep, can t stay asleep but I wake up no problem. Iv e always had good sleep til now. Sudden pulses in my head, like electrical jolt, but loud like its in my ears but I feel it in my head. Sharp sudden pains in my toes. Stomach aches, not bad but irritating, seem to find foods I can t eat anymore. Just curious if this is all tied into one thing because all of this just started out of nowhere about a month ago. Vitals: 6 4 270 lbs with no health problems and no alergies plus a recent health screen that revieled no issues besides being alittle overweight. Jeremy