VERY Rough Mornings... Anxiety or something else?

Hello all,

I'm currently 17 years old, a boy (if that's important), and will be going into my senior year of High School next year. I have had somewhat random days of feeling nauseous in school in the past; exclusively my first/second hours which run from 7:11 AM to around 9:00 AM. However, during this past Junior year of mine, it had become much more common, and worse.

I remember the first 'major attack'. I was sitting in English(my second hour), when seemingly out of nowhere, a tidal wave of nausea swept over me. It got to a point where I texted my mother (didn't have a car yet) that she needed to pick me up, and NOW. As I texted her, I started to feel dizzy. It was such an uncomfortable sensation that I found myself tensing my muscles throughout the entire ordeal. A strange sense of coldness swept over my entire body, and within minutes after this 'attack' had begun, it was over. My feeling of nausea was completely gone. However, I was sweating profusely. My forehead, arms, neck, and most of my upper torso had become so drenched in sweat that, as weird as it sounds, it almost looked like I had gone swimming. My ears felt numb, as if blood from my head had drained into the rest of my body. This attack worried we a lot, as I have never had something like that happen before.

Throughout the year, these occurred more and more. I also remember an instance where I had the same symptoms in my first hour, and as I walked out of the class to go to my second hour, I almost fainted in the hallway. Another instance involves my second semester second hour, World History. We were watching a documentary on Jack the Ripper, and this 'attack' came back. Obviously, feeling nauseous while watching a Jack the Ripper documentary isn't the best combination... This was the only 'attack' that I physically gagged from the nausea at, but I kid you not, right after I had gagged I felt completely fine.

I told my mom about these attacks, and she questioned if they could be anxiety/panic attacks. I will say that I have been diagnosed with major depression and previously taken medication for over a year and had no issues with it. I also tend to be very self-conscious about myself, and I constantly worry how the day will end up every morning. When these attacks occur, my anxiety may actually fuel it even more. However, I feel that if I had had anxiety and depression which hadn't been treated before, shouldn't I have had these symptoms as well a year back?

Surprisingly, I haven't had these sort of attacks since school let out almost a month ago. However, I still will feel nauseous here and there.

Here's a recap on what exactly occurred during these 'attacks':
-Severe Nausea
-Profuse Sweating
-Dizziness
-Numbness in the ears and parts of the head
-Skin becomes colder, although the sweat may cause that

These attacks lasted no longer than 5 minutes each, and I would only have one per day, once or twice a week. After the attack, I would recover almost immediately (all nausea, sweating, and dizziness would subside).

Thank you very much for any replies on this. I don't know if anyone else is experiencing these 'attacks', but it would help to understand what could be causing them. I feel very nervous about this, and would like to know if I should receive help from a doctor or if it is a common thing that can be easily dealt with. I know that consulting a doctor is always top priority, but I saw some threads on here that made me feel like some of you could know what's going on.

I also agree that you should first see a doctor to rule out anything more serious. Anticipatory anxiety sounds like what you suffer in the mornings, been there, done that. You worry about the "what if's". Panic attacks suck big time, and once you had a real doozy of one, then you wait on pins and needles for the next one.