My eyebrows and hair have thinned significantly. I changed birth control pills 8 months ago. My thyroid is normal. (photos)

It is best to see a dermatologist or a hair loss specialist to find the cause for you hair loss. Once the cause is established the proper treatment options can be recommended.

This is something that requires a doctor to evaluate. Women lose hair from a variety of causes, including birth control pills as you already found out. The work-up is extensive, not something that can be done over the internet and requires a doctor who knows about female hairloss.