Light pink/Brown discharge

hi guys. I’m currently 15 weeks pregnant & earlier today When I went to the toilet I saw very light nearly brown discharge. I went to the hospital and the treatment I received was disgusting so I ended up leaving and contacting my midwife but no reply yet. I’m stressing so much I can’t eat and I’m throwing up very badly due to stress. Does anybody know what this means and will my baby be okay? I’m trying my hardest to relax but I just feel sick and or relax at any cost. Has anyone else experienced this?