Austin is 3 weeks tomorrow (well, 2am wed morning!) and I am sure that he is going through a growth spurt. According to my MW this is a classic time for one (Oh joy!)
Last night was a shocker, with him feeding 2-3 hourly and not settling very well between feeds. Today he has fed roughly every 2 hours, although some feeds have been after only 1.5 hours and he has fed from both sides at every feed. I've reached the point where I can barely remember what times the feeds have been, or when the next one is due, and I have absolutely no idea which side to feed him on each time as with him feeding from both sides (and sometimes back to the first side again), alternating has gone totally out of the window! 
So my questions are firstly - does this sound normal for a GS?
Is there any way that I can help to increase my milk supply? I feel like he isn't getting the amount he wants at each feed (or at least isn't getting it quickly enough) as he keeps pulling off mid feed and getting quite cross. I'm having to re-latch him several times during each feed. The initial bit (where he is suck-suck-gulp) is fine, but once he has to suck more often between gulps he is pulling off.
Umm....and how long does this last?
Thank you - and I am so sorry for the amount of BFing q's I have. Austin might be my 2nd baby, but the successful BFing part of this is very much new territory for me!