Help What are these notification icons?

[I am curious]

The icons on the left side of the signal

bars have appeared suddenly and my phone was acting strange for sometime beforehand. I have not made any changes to my settings and there is no info describing the actions or purpose for them. Please help.

 

[chanchan05]

Pencil icon is you have S Pen detached. Other icon is you have a message of sorts. How about dragging the notification shade down and see what the notification says?

 

[tube517]

Don't know what phone you have but I'm assuming a Note.

The icon is for the Download Booster feature.

 

[I am curious]

Pencil icon is you have S Pen detached. Other icon is you have a message of sorts. How about dragging the notification shade down and see what the notification says?

Thank you for NOT reading the question.

Don't know what phone you have but I'm assuming a Note.

The icon is for the Download Booster feature.

Yes, I have a NOTE 3. The download boster wasn't activated and my phone has been acting strange. Also, can you identify the icon that displays the arrows next to it? I appreciate the help.