My Mother is having low bp from the past few days like between 95-105/70-75. Went to a doctor he said everything is fine. Blood reports are ok only vitamin D is 7 and CRP was 9( she has RA). Took medicines of RA CRP now in control. She has very mild weakness but no other symptoms. BP sometimes goes up to 110/80 but stays below 100 specially during early morning. What can be the reason?? Pulse is generally between 80-85 and all reports CBC,LFT,KFT are fine. Pls answer asap