I Am A Patient Of Anxiety Disorder Syndrome, Acute Spondylosis,

I am a patient of Anxiety disorder syndrome, acute spondylosis, migrane, black out, sweating,dementia, depression, severe vertigo, and acute BPPV.
Under treatment since 2008.
Medicines continuing - Lonazep.5MD (4 tabs daily), OLANEX F25 (HS), BETACAP TR80 (morning),Vertin 24 SOS.
Now for last 3 months when I go to bed at night left leg starts chewing/pain to its extreme. Consulted Orthopaedic. He advised Pregaba NT and Pregaba Plus every night.It gave me relief.But if I miss one night again can't sleep for pain.Doctor says MRI of waist might require as pain may cause due to strain on nerves of left leg from back waist region.

In 2005 I was diagnosed with vestibular imbalance in left ear after a tough test in both ears in Apollo Chennai.
Now for last 3 months BPPV severely affecting me.When I close my eyes reeling of head with palpitations starts.Once I open my eyes feel better.Can't sleep for last 3 months properly.
Local MD Doctor suggested to take Vertizac 3 times daily with Vertin 24 at night.Till I meet an efficient ENT.

All these medicines I mentioned is continuing.
I actually get treated at Apollo Gleanegles Kolkata since 2006.
Now my doctor settled abroad. Treatment over mail.
What should I do to get rid of BPPV and left leg pain when I try to sleep? It's damaging my biological systems.
Also suffer from morning sickness. Dream all sort of scary stuff, irrelevant incidents since 25 years whenever I sleep. I sweat very much.Even as the winter gets intense I start sweating more during sleep at night.Need to change bedsheets, blanket as they get soaked and wet.

My Life turned a nightmare.
May I be suggested with best possible treatment and advice on medicine?

Looking forward to your assessment and feedback.
Regards
Anerbban Dutta
Siliguri
India