I`ve gone through your query and various reports attached by you. I`ll try and answer your query one by one:-
1. From your sleep study reports, it is clear that you are suffering from OSA ie Obstructive Sleep Apnoea
2. CPAP is the first choice of non invasive ventilation for management of OSA.
3. There is nothing grossly abnormal with your lung function test. There may be minimal restrictive disorder which may be because of chest wall as it seems you are overweight
4. From your sleep studies, i could gather that you have been put on CPAP with 10 cm of water pressure. If symptoms are persisting, the pressure may be graduslly increased or BiPAP may be tried. Consult your sleep specialist.
5. Weight reduction and CPAP are the first line of treatment for OSA. If this does`nt help, some devicse like mandibular advancement devices or some surgery to remove or tighten the loose soft tissue
can be tried. However, there success may be equivocal. Consult your sleep therapist.
Venaflaxine is an antidepressant. It may also help in some weight loss
. It is also used for sleep related narcolepsy
. Your treating physician will guide you regarding the duration of treatment.
is used for excessive day time sleepiness and you should continue it.
6. The parotid and submandibular glands show inflammatory changes which may be due to some viral/bacterial infection you may have had in the recent past. Consult an ENT specialist
7. If your symptoms are occuring during day time , you may try using CPAP during day also.
I hope i`ve been able to answer your queries.