Training, heel pain, long runs

I haven't been keeping up with this too well.  Last week I got my 15 miler in on Thursday before hubby and I went on a little trip.  The kids were visiting grandparents so it worked out well.  Since then though I have been struggling with heel pain.  I was worried it was PF but then after researching I thought it was achilles tendonitis.  I'm still not sure.  I took wednesday and thursday off to see what would happen.  This morning I put on an older pair of running shoes and ran 6 miles.  I struggled but there wasn't as much pain.  Suppose to do a 17 miler tomorrow... we'll see.  I'm committed to doing it unless I am in a lot of pain.  I really don't want an injury.  I have put so many miles into this training already, and I can see the end in sight.  I may have to get a new pair of running shoes soon.

Can't decide if I want to drive to the park tomorrow or just run the neighborhoods again.  I'm thinking neighborhoods.  :)

Twinge...

  The last few times I've been running I've had "twinges" here and there.
Twinge: def. noun a weird acute pain that occurs in runners that makes them wonder if they should quit or just push through, and has them second guessing the whole run, especially if it comes and goes more than once.

 Now that you have an understanding of a twinge, I would like to elaborate on mine.  Twinge #1:  Right knee under patella (probably runners knee); usually happens later in runs or afterwards.  Twinge #2:  Inside left knee- have no idea what this could be but it is sharp and annoying.  Only hurts sometimes, not every run.  Twinge #3: Top of left foot; every 1/2 mile to mile, very sharp acute pain.  Ouch.  Almost stops me in my tracks.  This happened for the first time today.  Really not fun.

Since I don't know what these pains are really, I will, like other runners I know, continue to ignore them until they blossom into something serious enough to put me on my butt.  I'm sure it won't be long.