What Are Blue Veins Visible On Hips. Thighs, Rib Cage Etc And How To Remove Them. Can Laser Be Used To Remove Them?

I am 5'6, female, 21 and 138 lbs. I have been plagued by low blood pressure/poor circulation problems in the past that seem to have diminished in response to certain regimens I've implemented. A couple years ago I noticed broken capillaries (spider veins) around my rib cage, hips, the lower backside of my neck and some on my thighs. Ironically, the least were visible on my legs. I received laser treatment to get rid of most of these veins about a year ago but there are still much larger more blue veins visible on one of my hips (my left side). I asked for the doctor to treat those veins when I was receiving the laser removal but she didnt. I'm confused as to why they are visible and how I can make them go away? I dont believe these are spider veins because they appear to be much larger, thicker and more blue, all the while, just as visible as a spider vein. Could a laser be used? Should I seek an actual Vein Center?