No sleep at all tonight - please help

I did not sleep a wink tonight.  My doctor thinks it is anxiety related.  She wants to give me anti depressants I am not anxious!  My life is great right now except for the fact that I cannot sleep at all.  Not even tired.  Trying to convince my dictor that I need a sleep study.  Any thoughts, ideas?  I tried melatonin (doctor’s advice) and it gave me 3 hours of sleep (9-12).    Anyone ever experience this.  I am desperate!!  Thanks.

I have anxiety about not being able to sleep.    It’s not a problem at all during the day when my heart rate is 56 even dealing with quite a potentially stressful job.  I’ve had antidepressants over the years but they are for general anxiety and don’t do anything when my heart pounds immediately my head hits the pillow. A bit like Pavlovs dog.  I’ve stopped the antidepressants and me for No increase in anxiety day or night. Currently I’m taking Amitriptyline 20 mg which is helping me feel drowsy but am going back to doc this week to see what else might help.  Cbt did nothing for me.  I see a natural healer and that is helping.  I retire in March and am sleeping better so I think the stress of the workplace does affect my sleep. 

I take daily a good b, c, d vitamin and magnesium before I go to sleep.  magnesium spray good to relax before going to sleep.   

Hi there:  how much magnesium do you take?

Magnesium citrate tablet 73 mg.  I get from metabolic. Also magnesium spray with lavender from better you 100ml

The good thing is you are aware of the consequences of using antidepressants.

Yes.  I am yet I need to find some way to sleep. I am desperate, 

Stake 300 ml lukewarm buffalo milk ,mix well half spoon turmeric powder and drink one hour before bed,it works every day for me.do it exactly how I said 

Not stake ,it is take

Sleep restriction therapy