What are the good affects from Lisinopril?

Well, I posted my question and before posting it I was brought to a profile creation page. Now, I don't see my post and see no tool to see a list of posts. Here is my post again, sorry if it is duplicated. I have just started taking it and it is amazing. I wonder how many people have experienced what I am feeling. The first couple of days I have had the Headache they warn you about. It was getting worse the first 3 days. On the fourth day it eased up. Today on the fifth day I feel a slight pressure. The first 2 days I felt my typical self. On the third day I began realizing a difference. I was not as tired as I normally am. Yesterday, I noticed many other things as well. I have noticed. I breathe easier feel good have energy, endurance, stamina. Thinking clearer, It was like I was in a fog before this. I wake refreshed and not tired. I don’t know if this is a benefit or not. I had been having sleeping problems, but now I sleep 5 – 6 hours and don’t feel tired when I wake. It is not like insomnia where you feel like the light bulb went off and your up and still tired. It is simply that I am awake. I feel better in every way. Is this normal for this or any High Blood Pressure medicine?