Sevier hair loss. What can i do further?

Hello, From past 6 months I'm facing sevier hair fall.. My hair volume was good but now it is being reduced day by day. In these past 6 months because of fall... hair volume has become 1/4rth now. Year ago I have done thoroid check as well with no issues. Now I feel like I need to go for test once again but I'm not willing to go now because of covid.. I tried changing my shampoo to Baby product as well.. Changed hard water to Kaveri water and tried... Even started washing hair with cold water but nothing has changed... Don't know what else to do... I do shifts which changes monthly.. It's been 3 years I'm doing but all of a sudden I'm seeing this... I don't even have any other symptoms of thoroid... Can u suggest me what can I do further??? Also I do have a lot of stress because of family issues and I'm trying to overcome those stress levels too...