Hi, so I'm 3 weeks out from doing the Belfast marathon. My first although I'm a regular runner with several previous half marathons at a 2hr pace. Training was going great, 17 miles completed end of February in 2.30hr then I got horrendous shin splints, recovered from that to have a hip problem and am now just getting a chesty cold. I'm desperate to still do the marathon but it's decision time as to whether I should defer. I injury wise I feel good and did a 14 mile run a week ago with time to do 1 more run (3hrs) before a 2 week taper. I was aiming sub 4hrs but now just want to get round. Right thing to do? Should I still taper or continue a lot g run each week till the marathon? Or should I defer?!