Why won't my family let me leave my job when the got me injured?

At my job I'm going through boxes of files every day which means having to lift heavy files.

I've been doing this since August 2023.

In January my rotator cuff in my shoulder got injured due to this and my arm is still in pain.

I went to the doctor and have a medical certificate to prove to my husband I'm not fit to do this job.

My upper arm is inflamed and if I continue this it could lead to a frozen shoulder.

I understand we need the money and job market isn't great.

If I continue with this job I might not be able to use my arm and get work again ever.

I don't know how to convince him I need to leave before it gets even worse.

Why won't my family let me leave my job when the got me injured?
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