I just checked my training log for my one and only marathon. Bear in mind I FELT like I was working really hard. But I was a bit inconsistent and for last 13 weeks averaged only 27 mpw. Peaked at about 45 though. For one week. Did no cross training. Ran 3.46 in the end. BUT I made sure I got a good number of long runs in though - followed the 5 longest add up to 100 rule. And did some long tempo runs of up to 10 miles MP.
Your half time is similar to my half PB so I reckon you can do it off 25-30pm easily, as you are doing so many classes. You must be knackered!
Go see a physio. They will most likely do a ITBS release as part of a sports massage. It will hurt. A lot. But it will improve your problem no end. But do it asap as it will leave you sore afterwards and you will need to allow a bit of time to recover.
Signed up! This will be my second marathon, first Brighton. I ran 3.46 in Paris in 2009 so would love to get close to 3.30 but think it will be tough. I'm crap at being consistent so if I manage to string a whole years decent training together that should get me in with a fighting chance.
Any reco's on accomm close to the finish? Tackling the metro in Paris was agony afterwards!
Also dropping mileage for the few days before the race will probably help you massively (if you didn't do that already) as your schedule sounds quite tiring! Amazing what a fresh pair of legs can do.
Part of the point of marathon training is to get your body to store carbs in your muscles to use as fuel during the race. With the glycogen is stored water which is obviously heavy. That is why you will notice you pile weight on during a taper. But it's mostly water weight.
On the other hand, if your clothes actually feel tight you could be overdoing it on the calories. That's hat I tend to do. Running gives me a huge appetite which I feel justified in indulging and boom!