Blood Clot or Nerve Problem?

So, I have been kinda paranoid these last few days. I've noticed my right leg is weaker, with muscle pain/twitches, it goes from my groin/hip area to around the knee area and gets worse at night or when sitting. I have several risk factors for blood clots: heart condition, multiple surgeries on the calf of the leg that's bothering me, and a rather sedentary lifestyle (though I do get up to pee, get food, and so on during the day). Now, I also have spina bifida, with a tethered cord and lots of scar tissue/fatty tissue around my spine. My spine as curved more to the right lately (the right leg is the problem leg), along with more incontinence issues. I am looking for some guidance on whether or not this is a blood clot. I sometimes feel "twinge" pains in my thigh, but they p quickly. There is no swelling, discoloration, or abnormal temperatures. I HATE doctors and only want to go if I have to. Is this likely a blood clot or am I paranoid?