Hello...
Hope u r doing well...
The above symptoms might be due to obstruction of airway.
A gross deviated nasal septum/turbinate hypertrophy.
The symptoms r more suggestive of obstructive sleep apnea
Short neck/fat around neck and thick tongue leads to air way compromisation leading to mouth breathing which in turn is causing ur symptoms.
Next Steps
plain steam inhalation
good hydration
get an nasal endoscopy and oral examination done
blood
sugar level checkup
Health Tips
plz do daily exercise and wt loss training , wt loss will help improve ur sleep and help reduce obstructive sleep apnea
sleep study can also be done.
consult an ENT near by.