I'm no expert Tweedbunny, and it's difficult to tell without a photo, but it could simply mean your brom is dying of old age and is preparing to send up new pups?
Or lack of fresh air, poor ventilation, low humidity, cold draughts, low light, indoor heating, cooking fumes (greasy air), house dust can all contribute to a sick plant.
The water in the cup could be smelly and old inviting the gnats. Do you just top up the water each time?
I would take the brom outside and give it a good thorough shower all over, fill the brom right up, and then tip all the water out along with the house dust and gnats that have accumulated in the brom, then give it another good shower letting the water stay in there. I would also give the soil a good soak too, to help wash it through and clean the soil. I would then leave it outside in a well lit, but protected area out of direct sun.
What soil is the brom in? If the soil is beginning to break down into smaller particles, this could also invite gnats and other pests like mealy bugs and scale. And also reduce good air circulation amongst the roots.
What type of brom is it? How old is it? Has it flowered yet? How long has it been inside?

purplestar you're post actually helps alot.
It's potted in a deep narrow pot and doesn't have great air circulation to the roots, I didn't know that was important, I'll repot it.
It's also in low light, I'll probably need to move it.
I bought the plant less than a year ago, so it cant be old age.
I always just top the water, didn't know that could create a problem. Im going to take it outside and clean it out like you suggested.

Let me make sure.... You said "reduce good air circulation amongst the roots" Does that mean it needs circulation, or doesn't like circulation?

Thanks again for the help, I can't find any BASIC brom care instructions.

The majority of plants need good air circulation around the roots Tweedbunny. If the soil is too compacted and the soil particles are too small, there is less oxygen in the soil and the roots suffer greatly and become less active (they could rot) because the soil is waterlogged and can't support a healthy plant.

Broms need fresh air around them, all plants do. Open a few windows. The air needs to move around.

It's still possible that your brom has finished it's cycle even if you say you've had it for less than 12 months. How old was it when you got it? I know that's a tricky question, but if we could see a pic of your brom, it would help a bit. Could you describe it? LOL
I'll try and find you a good link for brom growing. Always remember, the correct soil is one of the most important parts of growing healthy plants in pots or garden. Good drainage is essential. The water needs to run through the soil quickly. Also, a good soak once a week is better than half a cup each day. This link will help you. Read all of it from top to bottom LOL

Here is a link that might be useful: Read it all from top to bottom LOL

a picture is worth a thousands words

Learned several things from the article about broms.

#1:
Water either the soil OR the cup. I've been watering both and possibly, then, overwatering.

#2:
"Keeping the cup filled with water under low light conditions that exist in most homes encourages bacteria and fungus problems. If the cup is kept filled with water, it should be flushed out with plenty of water periodically to prevent possible stagnation. Periodic flushing also prevents a build up of salts left when water in the cup evaporates."
Yeah, I'm going to have to give my plant MORE light if I fill the cup. Right now it's in semi-low light and Im watering the cup.

#3:
"Most bromeliads grow best in a very porous organic bark medium which permits quick water drainage and sufficient air circulation around the roots."
I was aware that most plants need some space in the soil to breathe, but I though the potting soil I used was porous enough. However, the article also said that plain potting soil is usually not porous enough. Guess I'll need to change that!

Thanks for the link.