You are vitamin D deficent
at least 10k for 2-3 months and then retest.
Look into Vitamin K,B12,folic,food rich in fiber, yogurt to heal your gut, besides Vitamin D.
Iron-Biotin-VitaminA plays role in hair health.
Also, oils can help in improving your overall state, omega3 to omega6 ration is crucial, get them tested to give a trial of fishoil or flaxoil for 1 month and se if your hairloss stopped.