You poor thing, @Anonymousxo ! Yes, I get symptoms every day, no matter what my heart rate. Mine is, excuse the language, absolutely fucked and ranges from 40 to over 200 (this is on medication) - of course I feel worst at the extremes, but you are not weird or anything in having symptoms even when your rate is lower.
Doctors with serious pota expertise will likely suggest full lower body compression. It's massively annoying and can be hot, but it should help a lot more than socks. Blood can pool not just at the bottom of your legs but also in your abdomen. You can get full compression via the NHS (fitted to you) for free, but will have to wait; meanwhile you can try buying compression leggings meant for exercise as this may help a bit.
Try to maintain control of the temperature in your environment as much as you can - fan and heater available even in summer/winter so you can adjust fast if you start to feel worse. Temperature can be a massive trigger for pots.
Do you eat differently at all when on your period? Food can trigger pots more, though it could also just be your hormones.
Your GP might be willing to give you a low dose of beta blockers to tide you over until you can see a consultant - can't guarantee they will, but worth asking. For me, beta blockers did help compared to having nothing! Then actual pots meds helped way more.