Feeling Nostalgic

Why, How and since when....

This is not the first time i'm feeling nostalgic... but its different from previous times... Is it some type of illness? I think it is and the symptoms are:..

1. Can't concentrate on work,
2. Can't concentrate on art,
3. Not comfortable at home,
4. Running away from friends,
5. Can't even stick to this laptop for a 2 hour movie...
6. Loss in energy and enthusiasm that i had a couple of years ago

In such nostalgic phase there is/are some strong desire/s which might kill such feeling. I tried to figure out and right now only thing i can think of is go on a long drive in a car with some music on long drive away from all this... may be i need a break

Still figuring out whats the cause...

Hope this passes soon

Cheers