Why do we present flowers to loved ones either when they are sick, dead or we are in a relationship with them?
If you have either received or given a flower, what symbol did it specifically represent?

It's just an expression of thoughtfulness and like you rightly asserted, is applicable to various scenarios.

Foreign, but beautiful concept though.

I was watching a movie, and a friend had to change fresh flowers at a hospital room... I was wondering if it alleviates pain?

It brightens up the room. Sort of gives it a cheery feel, which is what you'll want your friend / relation / patient at the hospital to feel. Giving out flowers also shows that you care.

I gave a girl a rose once. It was her birthday and I wanted to profess my love. It was an even more difficulttask since iI had the rose flower ordered from the UK and then preserved it for a year, just so I could present it at that perfect moment.

She took the rose from my hands, stared at it, then burst into laughter. All her friends at the party followed suit. When she saw the hurt look in my eyes she stopped laughing, held the rose to her heart and said thanks, then put it on the table. She then went on to open her other gifts, clothes, wristwatches, etc.
The next day when I came to visit her the rose was nowhere to be seen. Her roommate told me she had thrown it out with the morning trash.

That was the first and last time I gave a lady anything remotely resembling a flower.

5minsmadness: I gave a girl a rose once. It was her birthday and I wanted to profess my love. It was an even more difficulttask since iI had the rose flower ordered from the UK and then preserved it for a year, just so I could present it at that perfect moment.

She took the rose from my hands, stared at it, then burst into laughter. All her friends at the party followed suit. When she saw the hurt look in my eyes she stopped laughing, held the rose to her heart and said thanks, then put it on the table. She then went on to open her other gifts, clothes, wristwatches, etc.
The next day when I came to visit her the rose was nowhere to be seen. Her roommate told me she had thrown it out with the morning trash.

That was the first and last time I gave a lady anything remotely resembling a flower.

Awww...

Stop rolling with Mgbeke girls. I don tire to advice you sef.

My granmother loves flowers so I bring her flowers each time I visit her and that is at least once a week. She has always fresh flowers at home because of me and her youngest son.

I've never giving a flower, I think it will feel awkward if i do or receive it... Where will I keep it?

Well, it sure is lovely seeing it in the movies

Efemenaxy1:

Awww...

Stop rolling with Mgbeke girls. I don tire to advice you sef.