Inaccurate testing?

I woke up this morning, didn’t pee, I ate a little bit and drank a little bit but held in the pee for about 2-3 hours then took a pregnancy test.

Both the tests were negative. Is there a high chance the eating and drinking made my results inaccurate? It’s been longer than a month since the time I had sex. (used a condom)

I’m on CD 83, I haven’t had a period for 3 months. I have irregularities sometimes, but very rare that I go THIS long without a period.

I feel bloated sometimes, I’m sometimes constipated, and cramping. I haven’t gained weight, haven’t been nauseous, nothing. I haven’t been diagnosed with pcos, endometriosis, or anything with hormonal imbalance, but I think I have pcos.

Please help me figure it out. Currently looking for a time to go to the doc.