Sore Achilles tendon

Hello all,

I've been experiencing some right Achilles tendon soreness for the last week and a half, at least in the area well below my right calve and above my heel. I feel no pain while walking or running. It's not swollen and it does not feel tender. No bumps detected either. I'd love that feeling to go away though. I've been gently stretching it daily and doing eccentric exercises to work the area out pain free.

My issue is I have the LA Marathon less than 3 weeks away (24th) and I'm starting my taper. I need some advice how to proceed. I've been thinking about getting on the bike trainer and doing some 1 to 1.5 hour session on there in the Z2 to Z3 range to maintain cardiovascular fitness until it goes away. Or should I just take some time off?

I will see my chiropractor this coming Monday to possibly do some ART on it. Maybe that'll help too.

Thanks,
Roland