Laughing at My Car Panic

 This is just so Future Self can look back and me and have a good laugh.

I had an appointment at my periodontist (good news!  The bone graft took and I can now get my crown).  My car had been parked in the sun, so when I got in, I rolled down the front windows to let the heat out.  Then, because the day was actually quite nice, neither hot nor cold, I rolled them back up but left them open a couple of inches.
When  I got to that last stretch before home, with no traffic and speed limit of 55 (which means that I go 60), I rolled them up because it would get pretty windy at that speed, and hit the accelerator .  My car started making this loud "whump whump whump whomp" sound and shaking.  

Oh, shit.

Should I pull over immediately and call roadside assistance, or do I think I can make it home?  The car is shuddering, but still tracking straight.  I'm not hearing anything else.  I slow down and nurse it home.

It's at times like these that I feel the weight of widowhood.  In the life that I should have had, Bob likely would have been driving because we went to appointments together.  He likely would have known what the problem was.  And we'd still have the second vehicle while this one was being worked on.  But now I'm on my own.

I quelled my panic.  I was home now.  Whatever was wrong would still be wrong in 20 minutes, so just get something to drink, sit down, and have a think.  Make a plan.

Google to see what it might be.
Call around to find a shop
I have Triple A+ - they can come tow the car if it's determined that it's not safe to drive.
Gill or Rik or Christy would be willing to give me a lift to get a rental car.

You got this, girl.  You can cope.

First thought:  What if one of the tires is low (even though the light didn't come one) or even flat?  Easy enough to check - grab the tire gauge.  I walk around to the passenger side of the car . . . .  and the rear window is open.  I must have accidentally opened it when I opened the front windows.

I had associated the sound with the fact that I had just accelerated the car.  But that was also when I rolled up the front windows.  As long as they were open, the air flowed through.  With them closed, the air just buffeted.   I rolled up the window, drove the car back to the road and hit 60 - no problem.

I feel like an idiot.

Fortunately not as much as I would have if I had gone through all the above plans.  But, on the plus side, apparently I'm good at making crisis plans.