Hello everyone;
I am new to fixed gear and to the forum. I have a question to ask. I've been having this weird ticking noise comming from either the bottom bracket or rear wheel. These are the things I noticed.

I hear the ticking noise when I am pedaling while I am on the bike (it doesn't happen when the bike is on the stand and I turn the pedals with my hand)
I hear the noise almost always at the same position of the crank set.( ticking happens when the left crank is at the back)
I hear the noise when I put pressure on the pedals.(If I am on downhill and put no pressure on the pedals I don't hear any ticking)
And I only hear it when I am going slow..when I speed up there is no ticking.

It may not bother most people but this started to happen for the last 2 days and it bothers me so much :-) before that it was so smooth and there was no noise at all. I am guessing it might be the bearings of the bottom bracket but then it should make the same noise when I turn the pedals while the bike is on the stand. or could it be flip flop hub (maybe the free wheel cog is making the noise??)

does anyone have any idea what this could be??or any suggestions where to look..it is really difficult since this doesn't happen when I am off the bike and I can examine so much while I am riding..

just so you guys know, I am 29 and I've been riding bikes since 6 but this is my first fixie and I had it for few months only. And I love it :-)

Thank you very much..