Hi everyone.  Got some some strangeness going on and thought you guys might have seen this before:

50 y/o male, warfarin for life after three DVTs  & 2 PEs.  

All has been good, although my INR dropped inexplicably about a month or so ago and got down around 1.5.  Got it back to over 2 a little over a week ago and am now 2.3 (test at home).

A month ago, I bought some new running shoes and increaded my run frquency.  I run long distances, so I am spinning up for better weather.  Since getting new shoes, had some calf pain that dissapaited when I didn't run or did non-impact exercise., which I always alternated with.  Over the last four days, the following has happened:

-Away from gym and now running everyday.
-Calf pain increased but never to unwalkable or swollen level.  Put off to increased milage and running frequency.  Figured it would dissapaite.-Did some exercises that may or may not have strained my back, which had been hurting a bit over the last few days.
-Woke this morning to much reduced to almost non-existent calf pain but semi-sharp pain in back and flank that was similar to PE pain inthe past.  This has dissipated since the morning, which was not similar.
-Calf is currently a little tingly.

So, you can see my dilema:  is it or isn't it?  DVT & PE or coincidental muscle strains? 

I'm not sure what a doctor could find out at this point - if it was a DVT, it's probably gone.  If it is a PE, then I should be anti-coagulated, which I already am.  I know that warfarin fails occur about 2%-3%, so that's pretty low (but possible).  I could get a daimler, but, once again, the treatment is just the same.  I'm already at 12mg Warfarin/day to be at 2.3, which seems like a lot.  

I guess my question is if people have seen similar effects?  I'll follow up with my doctor when I get home but, unless people adamantly think otherwise, this doesn't feel like an ER visit to me.

Thankful in advance for any thoughts!