Am I overthinking? Why should I do?

I’ve been dating a girl for the last few months. We text every day. Sometimes it can be all day we are texting. We have never missed a day. She went for a weekend away with friends and I knew that texting would be less. She text me a couple of times still keeping in touch each day. However yesterday she didn’t text me and she hasn’t messaged this morning.

I thought yesterday that she was with her friends coming home, would be busy with family when she did get back but would at least text me before bed - she’s didn’t. She does have work today so maybe busy.

Now I have anxiety about it. Maybe I thought we are more than what we are. I feel so low down in priority. Or that she’s not that into me to send me a brief text - am I not on her mind/did she not miss me? It’s just we always make time to text even if it’s tricky.

I don’t know if to text her or wait and see if she does?

Updates
4 mo
Ok so I text her. I kept it normal asking how her time with her friends was and if she’s ok. She text back really quickly. Turns out she’s not been at work today. Feel even worse knowing she wasn’t even too busy to text
Am I overthinking? Why should I do?
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