Temperature Variation Between Front & Rear Paws

We have a 13&1/2 year old female Golden Retriever that we recently noticed has developed a change in temperature between her front paws/pads are warm & her rear very cool/cold to the touch. She used to have snow/ice build up in between the pads/fur during the winter months but not this year( only the front )....
Our 7 year old male Golden runs with all 4 warm/hot & has had snow/ice on his pads/paws at times like our older girl used to.
They both wear Muttluks insulated Boots during extreme cold& snow/ice conditions....
She is in excellent health, just showing signs of her age with some stiffness in her hips & the occasional slight trembling rear leg( when resting/sleeping ) at times but my real question is :- We wonder if it could it be the start of blockage in blood flow circulation related only to the rear extremities -> Has anyone had a similar situation develop with their senior dog ?? With all the dogs we've had over the years , this seems to be a first for us.... :shrug::pawprint::pawprint:

My old girl had a heart problem, and her paws did become increasingly colder. I don't remember if it was all 4 at the same time, or the back first. If the vet hasn't listened to her heart lately, it might be worth doing?

Maybe acupuncture would help with the circulation?

I can only think of a circulation problem as well. Has she been checked by your vet recently? A senior dog should have a geriatric blood panel done at least once a year .....preferably twice.

Good luck and please keep us posted. :fingerscr :goodvibes:

Thanks for the feedback:thumbs up...
Peaches does have her blood tested & urine as well twice per year because our girl is a survivor of kidney failure due to a double whammy of 2 types of leptos infections & a Lyme disease-related tick bite back in the fall of 2009/winter 2010....
The vet does check her heart but nothing is there for now it seems.:shrug:
Needless to say , we almost lost her but she's a very tough survivor , after a form of dialysis for week at the vets ( she was given a 50/50 chance of living :eek:) plus force feeding w/meds for 2 months , all is well for now:goodvibes:.
Since it is an extremely very cold winter this year out here , maybe it's just another sign of aging :( , as just recently we went through a mild spell for a couple of days & her back feet seemed to be correspondingly slightly warmer for now:fingerscr.:pawprint: