"Earlier this year I was advised to not take my BP meds as my BP was low. "
Can you remember what your BP was recording and did you have any symptoms e.g dizziness?
"Since then I haven't been taking them and have had further episodes of low BP. "
Again.....what were the readings and did you have any symptoms?
"Today I haven't been feeling quite right, checked my BP and it was significantly higher than it has been over the past few months. "
What were the readings?
I am not sure of your question, but by far, the commonest cause of low BP is taking too big a dose of BP lowering tablets, although there are many other less commoner causes.
I think that is what you are saking, but not sure.