Mouldy/damp smell from my buds????any help would be amazing.

Hey all,,how you doing? all good I hope.
Anyway, Im about 2-3weeks offa finishing one plant(perputal grow,she is first to be done.) she is a sweet dwarf auto(fem from seed), looking great, but the buds smell mouldy/damp. No theres no bud mould/rot as Ive checked everyday,looking all over and there are no signs of mould. It smells damp but she hasnt been misted in since she went into flower,roughly 5 weeks,
so its not mouldI can see,,, . its not the roots that are making this smell(root rot) its just from the buds but as I say I have yet to find anyform of blight/mould/rot.
Now,,she's alittle Mg def,,but thats okay and not y she smelling bad.
, I just want to know if its defo some form of mould or just the plant? last grow nothing smelt like she dose, and the two sunk1's next to her smell great. ones about 4 weeks into flower and another is just gone two weeks,,
For those who want to know its soil,bio bizz nutes,temps 78 - 80 degree F,Humidty under 30%,osalting fan just went in today to see if this helps. I was worried that if there was blight/mould it could spread spores in the wind,,,but I doubt there mould but the smell suggest there is.
Any other info you need just ask.....
+rep to anyone who can help. Take it easy..

ha,,okay,,no body has any ideas??? well, theres no mold or owt on her. So has anybody had any exp. of this happing.???????

hello mate i have 3 white dwarfs second week into flowering and my buds are smelling like moldy cabage dont no why they smelt so sweet at first and strong but now smell like shit, the only thing i can think of is to much water i am useing bio as well, but maybe could be to much bio but i think i am watering a bit to much so gonna try and dry them out for 3 days and see what happens illl let you no if i find anything else out but im pretty much running the same as you so im at a loose end with this to

maybe too much nutes.....

im shittin it a bit now lol im reading all sorts i keep smelling the plants, they look so healthy though really nice flowers on them really white no grey or shitty colour on them, leafs nice and green they get plenty of fresh air temps always good, no mold from what i can see at all any idea's any one

yeah coxyyxoc,,,yeah It must be a nute build up in the buds,,,do you use bio heaven?? at the moe I STOPPED USING the bio heaven and the plants are starting to smell like weed..that sweet dwarf smell like ganja only after its cured and then when its ground up,,that releases the smell of ganja....

so yeah the bio heaven is what I think has been making them smell bad././/

yeah now that you say that i am useing the same as you and last night i rubbed my finger on the bud and the leaf around it and it smells just like weed but if i smell it from just above smells like moldy washing, but i have checked all over and it all looks really healthy but thats still not to say it could not be mold inside the bud itself but i hear if the rest of the plant looks healthy and its growing nicely its prob to much nutes, i was useing miracle grow bloom booster at first and it was all ok, come to think of it when i switched to bio i started to get the funny smell, well lets both have fingers crossed any way that its the bio ive already lost 5 plants cause they were male dont need to lose any more.