How are vitamin deficiencies detected? Some specific blood test?

At my lowest:

• I wanted to get out of the pit just so I could help others get out too. But I’d admit I haven’t actually realised this commitment. I just ask people how they feel and try to listen to everyone.
• I did not want to give anyone the pleasure to know that I gave up, that I could not take it anymore. That they won.
• I’d prefer to not cause suffering to my loved ones.

Now, I think life is both a gift and a responsability. And, right now, I want to fulfill this responsability I have towards others.

Anyways, I wish you all an existence that is worth going through.

Thanks.

Although, I don’t know how would I’ve guessed the dog likes to bite people’s throats.

I almost never understand the jokes of this comics.