Why am I having sore throat and swollen lymph node after six months of intercourse?

Hello doctor,

I was wondering if any of the symptoms I️ have correspond with any HIV (Human Immunodeficiency Virus) symptoms and if it is likely that I have the disease. I️ am an 18-year-old female and am overall very healthy and active. Six months ago, I was taken advantage of by a male in college whom I️ did not even know. This was my first sexual experience, and I️ have not had any since then, but I️ do not know his sexual background. He did not use a condom, but also did not have enough time to ejaculate inside of me because I️ got away. I️ had absolutely no symptoms until now. One month after the traumatic experience, I️ decided to get an IUD (Intra uterine Device) to protect me from any unwanted or unexpected situation. Three months after the sexual experience, I️ was admitted to the hospital due to gastrointestinal issues. After my release, I️ discovered that I️ tested positive for chlamydia. I️ took the two pills (one dose) that completely cleared my STI (Sexually Transmitted Disease). In the hospital, would they have been able to tell from my blood work if I️ was HIV positive or not? Now three months later, (six months after the initial experience) weird symptoms have begun to show. I️ first had a sore throat, and then only one of my lymph nodes on my left side of my neck slightly started to swell, but not significantly enough to show through the skin. At first, the lymph node was hard, but now i‎t is starting to soften. After, I️ started having nosebleeds. Then, large red bumps started to appear in the back of my tongue, and some on the side of my tongue, but none of them are painful. I️ have no bumps in my throat or roof of the mouth or underneath the tongue, just on the back. I️ have never noticed these bumps before. Around the bumps, there was also some white coating, which was easy to brush off, but when I️ did there was still no bleeding. I️ have no rash, no night sweats, no fever or anything. But from research, i‎t says that these kind of bumps are common for HIV positive people, as well as swollen lymph nodes. I️ also have found small white specks in my stool, but no other parts of my body have been affected but my mouth and throat. The back of my throat is still sore and scratchy, but I️ have no vocal changes. If not HIV, could I‎t be some other STD or viral infection that is serious? Could i‎t be another problem with my gastrointestinal tract? And what can I️ do to get rid of these bumps? It has been less than a week with these symptoms. Should I️ get tested for HIV? I have been very paranoid.