Offer arrived, can I still ask for more? - any advice?

I received an offer as a data-entry clerk and I think the pay is a little low. It has been weighing on me all week. The hiring manager was friendly and open.

Thanks for writing this out. I went through something close to it last year, and it settled down once I kept a simple log of every call and form.

If they say no, consider asking for something else, such as a review in six months.