Another problem that can occur with weakness in the area of swallowing  is sleep apnoea.  Snoring is a good indicator that the airways are not clear when asleep and you don't have to be polio to have problems with snoring as we all know.
 
Other indications for sleep apnoea include disturbed sleep, particularly waking with a start for no explainable reason; waking even more tired in the morning; waking with a headache in the front of the head (from lack of oxygen during the night - the headache often goes as oxygen levels improve with normal breathing after a few hours of waking).  Nightmares, particularly of falling or drowning, may indicate difficulty in breathing while asleep.  Often your sleeping partner wakes because you are not breathing and becomes concerned.  You are not going to die from sleep apnoea on the spot, which is often the concern.  When oxygen levels drop, carbon dioxide levels rise.  At a certain level of carbon dioxide, the brain wakes you up and then you resume breathing.  This means that you don't get the benefit of the restful deep sleep that you should.  So you can end up sleepy during the day and even fall asleep driving your car and cause an accident.  As well as fatigue this can increase pain.  Over 15 years or so of this happening, people end up with shortness of breath during the daytime as well and eventually heart failure as the heart enlarges to cope with the strain.
 
Simple methods can often make a difference like always sleeping on your side not your back; avoid-ing things that make your muscles relax more or strains them - like alcohol at night, a heavy dinner, even getting too tired can make you worse.  Treating Asthma, a blocked nose from allergies or nasal constriction can improve nocturnal breathing. For some people, a specially made dental plate to keep the jaw aligned, works.  Others may need a C-PAP, a machine which pushes air into the airways continuously through a face mask while you sleep.  A referral from your GP to your state Sleep Disorder Clinic (SCGH for WA) is the first step.  They deal with many people experiencing sleeping problems and most are not from polio.