Flirting IRL?

I think I have been flirting with somebody IRL and I also think she flirted back but I don't know for sure 😅

I had few cute interactions with this woman that works at my local pottery business. I go there every two months approx. Today I went again and found myself hoping she was there. When I went in a saw two other ladies behond the counter and I thought, o well... better luck next time. But then I saw her somewhere between the racks and she saw me and we both went OH HI with a lot of surprise in our voices and pretty loud too I think.

I was kind of startled she actually was in, so I went in the back part of the store which is kind of like a warehouse. I needed clay and was looking for the right type. She followed me in there and was dragging around this big wooden crate. She was walking in my way and huffing an puffing, quite dramatically.

So I asked her: are you alright?
And she said: I don't know what to do.
And I asked: ...With you life?

She looked at me a little confused. I smirked and then she laughed and said: my therapist nor you know what to do about that. I just don't know where to put this shipment of downpriced clay blabla bla. She was rambling. I could only laugh a little. And when she was done rambling I pointed at a spot and said: There. Place it there.

Well anyway. The interaction went on and on. I asked her a couple of questions. She kept rambling and telling me all kinds of things about her life. About how she lived overseas for the last 7 years. About her ADHD. About her dog with diarrea. About digging up clay from nature. She asked me if I wanted to see what she was working on and I said yes. She took me into some office space and showed me a container of mud. I tried to flirt with my eyes. She gave me her phone to show me pictures of the woodworking she had done. I was wondering: should I put my number in here? I've got the phone in my hand. But I didn't, I was a coward.

Whe she was done with one of her stories I told her: I need a tile cutter, size 114. She ran and got it for me, open the box and put it in my hand. I nodded and said: that's the one. I felt so big, somehow. Dominant. She made me feel that way for running and getting me the stuff I needed. She seemed so nervous.

I really don't know if she is into woman. But I know I was flirting. And I know this was more than a normal interaction. And I feel butterflies. And I am plotting my next visit.

The things that makes me insecure at this moment:
I think I am about 8 to 10 years older than she is (I'm 41, she might be in her early 30's).
She is small, cute. I am big (fat) and butch.
She was in her professional work environment. I don't want to be inappropriate by asking her out or something. I don't want her to feel unsafe in her workspace, I don't want to cross a line.

What do you think?