25F, suspecting scurvy

Diagnosed with ARFID which makes eating balanced meals harder so I am susceptible to vitamin deficiencies.

Lately I have been easily fatigued. I barely move around most of the day and I am still exhausted by 8pm as if I had been out all day. (My normal bed time is around midnight for reference.) Pain in my arms, hands and legs, it flares up at times to be a bit worse. Moving my fingers hurts, but not to the point where it prevents me from doing things.

I think it is scurvy, but I am unsure. I don't eat fruits or vegetables really. I have never had scurvy before. I am eating more restrictive now, likely due to stress from life. So that could have caused me to exclude whatever my source of vitamin c was.

But I am not sure I am arriving at the right conclusion. Could this be something else?

I am also prone to vitamin D deficiencies. But the last time I had a severe vitamin D deficiency, the pain was different.