u/trickerfingerz

This year I started having sexual encounters with men. I'm young (early 20s), so most of my experiences have been with people my age who have little to no sexual history.
However, about a month ago, I had the encounter I'm most paranoid about. He was an older guy, almost 30, and clearly had way more sexual experience. I asked him directly if he had HIV, and he told me he was fine, but obviously, I have no concrete way of verifying that.
Recently, I experienced a sore throat and a single swollen lymph node on the left side of my neck. For context, I'm very prone to sore throats and nasal dryness (caused by using AC too cold and things like that), but I had never experienced a swollen lymph node before. It was just slightly inflamed, and I only noticed it because I was lying face down with my neck bent and felt the discomfort.
A few days ago, I looked up lymph nodes online and found out they can be an early sign of HIV. That completely terrified me, and my mind has been spiraling ever since.
The inflammation in my neck and the sore throat are already gone, but my neck still feels stiff/numb, and I have this weird, vague sense of malaise that I can't even explain. I feel like my anxiety is so high that I might be inducing physical symptoms out of fear. My doctor's appointment isn't until early September, so l've decided to monitor myself in the meantime.
Extra context: I am 100% top/insertive. I know the risk is significantly lower this way, but I can't completely shake off the possibility. Any thoughts?

Llevo tiempo queriendo concretar una idea en un guion cinematográfico. El punto es que, al momento de tratar de darle las raíces a mi idea, me surgen muchas preguntas, tal vez porque tiendo a ser alguien que estructura antes de escribir como tal. ¿Estaré dejando de lado tal cosa en la introducción o en tal o cual escena? ¿Estaré pensando mucho metafóricamente en vez de prácticamente? Y siempre me he topado con esta frase o este consejo de: «Primero hay que hacerlo y después puedes arreglarlo». ¿En verdad es algo que funciona? ¿Llegar a la página en blanco con mis ideas y tratar de darles forma de la manera más burda?
Quiero consejos de, tal vez, personas que al iniciar en la escritura se hayan sentido igual. También agrego que la idea que tengo para la historia es, digamos, muy concreta; sé qué es lo que quiero evocar. La tengo clara. Obviamente faltan todos los detalles, y siempre lo más vívido de las historias son los detalles.