Emotionally and mentally stress

38wks pregnant w 2 yrs old toddler. Im struggling with daily sciatica pain on my right lower limp since my third trimester begin. I couldnt care for my toddler well when she needs me. I cant move at all. On and off bed has been a struggle. Tears hasnt been foreign for my eyes everyday. This 2nd pregnancy hasnt been easy for me physically, mentally and emotionally. Going to the dr, its always normal is their answer. ,😭😭😭