Sudden Change of Weather

It was a sudden change in weather on Tuesday. It was very hot on the previous days and suddenly, it rained on Tuesday. I was fine in the morning and afternoon. But, by night, I felt tired and went to bed early. I thought I would get better by tomorrow. It always has.

On the Wednesday morning, I did not get any better and I could feel myself very warm. I got changed, ready to go to class in a very tired mode. After thinking for a while, I decided not to go to class and rest. I took panadol and went to sleep. I slept almost for the whole day and also getting up in between.
By night, I could hardly sleep, so I sat in front of the computer and chat to mum. Surprisingly, I feel much better. But I had headache, blocked-nose and sore throat.
And it was raining and hailing with strong wind the whole day on Wednesday.

On Thursday morning, I woke up at 9am and thought, ok.. maybe I should go to class, so I got ready in 15 minutes and rushed to class, thinking that I am late, I haven't had my breakfast. But I was early. Cool..
Another sudden change of weather, it is sunny and hot. What the... the weather can change just from one day. Sigh...

Still in the process of recovering, I went to get medicine for my headache from the University Pharmacy. They recommended me this, Migraine Pain. I was told to ignore the words and that it is just to clear my headache. I took it cos I really needed to concentrate on my work and not on the headache. So, in the afternoon, I concentrate really well. But I cannot sleep that night, I thought it was cos of the medicine I took.
Friday... I had a bit of headache but I did not take the medicine since I'm still in my room. Only took it when I went to class. More headache in the evening when I went to the beach but I didn't take the medicine. I don't want to end up awake throughout the night.
Saturday... I did not take any the medicine anymore. I think my headache has gone away, leaving me with sore throat and blocked nose. Hmm... I can't wait to get rid of those two. What should I do next?