Vascular neuropathy?

Hi - I am wondering if any of you that are dealing with neuropathy have found that it is actually due to vascular or circulatory issues instead of neurological issues. I have had numbness and tingling in my arms and legs for 2 years. It also includes other symptoms, including muscle fatigue, legs aching, knots in my muscles, etc. I have had every neurological test my dr could come up with and have had normal results on everything. I also had digestive issues that started, leaving me with a lack of appetite, feeling full, feeling sick to my stomach for a year and a half, to the point where I lost 45 pounds without trying. We have looked at neuro stuff and autoimmune stuff, GI stuff, lots of blood tests, scans, procedures, etc and are left with no answers. Recently, I had a blood clot (DVT) and in the process of dealing with that whole situation, I have been wondering if I have circulatory issues instead of neuro stuff. The DVT was due to a narrowing in my iliac vein (May Thurner’s syndrome) and it doesn’t really explain all of the other issues going on -though it made the pain in my legs and hips at the time go away when the clot was removed. The numbness and tingling is still there as much as or more than before, but since I have been on blood thinners, the digestive issues just disappeared. Then, I recently saw an article /ad for a local vascular center that started with something like “are you having trouble with neuropathy? Many people with neuropathy are actually suffering from vascular issues instead or neurological issues” I know peripheral artery disease (PAD) can cause some of these issues, and diabetes, but I don’t have diabetes (they have checked many times) and I am not overweight (because of all of the digestive issues) and I go walking almost every day, so it isn’t a problem with not exercising, my cholesterol is fine, so it doesn’t seem likely that PAD is the problem. The other stuff I have looked up usually affect smokers, and I have never smoked. I am just wondering if anyone here got answers that took them in the vascular direction. Thanks.