Speaking from my own experience I would say you are much better off taking a couple of weeks off now, and playing it safe, then to risk making things worse and finding yourself unable to train for months.
This may sound a bit negative, and it probably is. I was in the best form of my life 14 months ago, and didn't listen to my body after doing the 3 peaks, and kept training and racing hard all summer, despite feeling washed out and over tired, and race performances not being what I would have expected. Eventually it all caught up with me and I got ill, and I've basically had one illness after another since then. I've trained for about 2 months of the last 6.
The last 6 months may just be one of those things, but I wish I'd listened to my body a bit and had a couple of weeks off after 3 peaks.
It sounds like you've done quite a lot this year. (bit jealous
) If you're not used to it you probably need a break, and would benefit from it. You do see some people doing all the big races, and all the other races week in week out, but they have probably been doing it for years and are better equipped.
Hope you get sorted soon.
RP.