Been taking 6 mg melatonin every night.  Last night I forgot to take it for the first time in ages.  I noticed today my head felt lighter throughout the day, felt "clearer", possibly less depressed (again "lighter", less "slowed down") (don't know if I am imagining this but pretty sure I'm not), also felt like I was breathing better (have bad allergies so don't know maybe that was a coincidence and allergies were just not as bad today).  I would like to stop taking it, but don't know if this is wise, is this what is keeping the headaches away is the melatonin use and am I imagining that maybe it is causing "side effects" (although relatively mild)?  Any advice from long term users or others knowledgeable?
Thanks--any input appreciated.

None of us is you. There's only one way to find out.

Yeah, you know you're right I'm not going to take the risk--there's a reason why I've been in remission this long and I have a feeling that that word begins with "M" and ends with "N"!  Otherwise why would I be shadowing right now?  Yep, I'm not messing with the sleep thing, I don't want those headaches back.

You can always view it as a test - and always be ready to get back on the train.

Maybe you could try taking only 3 mg of melatonin before bed?  I too have experienced the "heaviness" of my head taking 6-9 mg of melatonin.  I did some research on line and discovered that excess melatonin production has been linked with SAD, Seasonal Affective Disorder.  Resulting in tiredness, grogginess and difficulty getting out of bed.  So I now only take melatonin when I am afraid a cycle is approaching and then when the cycle is over I lower my dosage, gradually until I am not taking any.   Reading the leaflet with the melatonin that I purchased, the recommended dosage is 3 mg and it is not recommended to take it on a continual basis.  I realize that everyone is different, but this works for me.
Hope you are still in remission...

   I have been taking it for the past 2-3 weeks now ( 10mg.) with no help what so ever as far as keeping the beast away.....I decided last night that its not for me,so Monday was the last night that i took it.....As far as being tired ( and the not so clear head),i think that its do to my dancing throughout the night,then again we are all so different.....wishing all PFDAN.....Lenny

Next day groggyness is one commonly mentioned side effect of melatonin. For daily maintenance, I usually take 1.5 mg; when I am getting hit, the dose increases.