Scared me again

Yesterday the Pickle had his 15 month check up. D walked in to get him in the morning and he seemed a little winy. Instead of standing up and bouncing at the side of his crib he continued to lay down until D picked him up. Then the pickle whined for me instead of dad. During they day I thought that he felt a little warm once, but then thought that it was because we were playing and it was warm outside. We rode the bike to the library and swung on the swings. Pickle loved the swings. He would tip his head back as he swung up and just giggle and shriek.
In the afternoon we headed for his check up and he seemed to be his chipper self. The Dr. Checked him out, he is in the 80th percentile for weight (27 lbs, 2 oz) and 70th percentile for height (31.75 inches). He got his Prevnar vaccination and we headed home. When we got home he seemed a little fussy, and clingy and I just chalked it up to getting the shot. He went down for his nap and everything seemed normal.
After his normal nap duration he woke up and I went in to get him and he was standing at the edge of his crib. I picked him up and he felt warm, so I stuck a thermometer sticker under his arm and went to change his diaper. As I finished changing his diaper he whined and started the seizer. I could see it coming moments before it happened and did not panic. I talked to him while it went on, lasting about 2 and a half minutes, the whole time pleading in my mind for D to get home quick. After it was over he was limp like the last time, he was hot but the I had not read the directions on the thermometer yet and was unable to really compute what his temp was. I took him to the bathroom and wiped him down with a cool cloth as he started to come back. It seemed like his legs come back first and he has a hard time moving his arms and neck for a while after the seizer. I carried him downstairs and called the doctors answering service. D came home while I was on the phone with them. The Pickle fell into a fitfully sleep and we waited on the doctor to call us back. About 30 min later I talked to her and she thought that he might have been coming down with something and then the Prevnar pushed his immune system and caused the fever and a spike. She told us to keep an eye on him and if he had another one during the evening or night we were to take him to Children's hospital. Pickle recovered for the evening and slept through the night. He was up this morning about 5 and just wanted to nurse and nurse and nurse. He felt very warm but in the morning light I couldn't see the thermometer. We gave him a dose of Motrin and about 6 when I read the thermometer it was at 101. D stayed home with him today and when I left the thermometer was reading 96. D is going to call the doctor and take him in today to have him checked out.
It is such a helpless feeling to not be able to do anything to stop the seizer once it starts. I just stayed with him and rubbed his back and talked calmly to him hoping that he could hear me and not be scared. After he had his first seizer in February I took the doctor's to heart when they said that he would probably never have another one. Now I'm on constant alert for any movement or slight increase in temp that might mean one is starting. Our doctor told us to start motrin at the first sign of any fever and alternate motrin and tylenol every 3 hours. We saw a different doctor in the practice one visit who said that this was not proven to prevent them. I hope he out grows this soon.