Thanks for the confirmation, Dee, Bonnie, Rd2quit, and dafunbra. I know several people who have or had used marijuana regularly and it definitely seemed to cause a lot of problems for them.
Bonnie - I really hope you recover from your pain soon.
I've had to rest a bit while in SoCal the past three days because I was walking about 8 miles a day on hilly surfaces (including a hike up to Griffith Observatory) and my shins got really sore. Once that went away, I still had lingering pain in my right Achilles heel. Tomorrow should be good for some more moderate walking.
Side note: I am in love with this area. So beautiful and people are really nice and friendly. The traffic here is comparable to Chicago traffic so that is something I am already accustomed to.
For those of you in the "subzero zone"... please be safe tomorrow. Up to -50 degree wind chills (Fahrenheit) in the Chicago area... insane!!!