I know the reason

The swelling in my legs isd callled lidema (not sure of spelling).  It is not cuased by gravity, like edema.   It is caused by diabetes.

I have reasoned out the timing.

Spinal cord stimulator comes out.   Can't stand up long enough to get freshground peanut butter.   Even with the stimulator in, I could barely stand long enough to get 6 small containers of PB, which only lasts 3 days - at most.   And sometimes the machine was near empty, so wasted trip.  

It cost 600$ to get a grinder like the one at whole foods, and I am not sure if it works on household current

I switch to store bought PB, too much sugar/fat -> lidema 2 weeks after surgery.

I have been mixing Spirulina with PB until if I mix anymore, it won't be a paste.  That is 3 parts PB to 1 part Spirulina.   I will try half and half.

I have to wear compression hose, and give myself shots everyday now.   It is not insulin.  It's brand name is victoza