Lemon tree dropping flowers?

[SkyChild]

So my lemon tree is in the same place it has been since I bought it, on my kitchen-top, which is nice and light without direct scorching sunshine on the leaves. It's a moderate temperature, not overly hot, not too cool. I've been watering it and misting it with water as and when.

It's producing lots of lovely flowers but they seem to grow brown and drop off pretty quickly. I've been pollinating with a paintbrush and can see some little fruits setting and swelling but I juts wondered - why are the flowers dropping?

Leaves are fine, getting a nice flush of new leaves, all green colour. Are the flowers dropping just because I've been pollinating? Should I be feeding with tomato feed? Is it the tap water I've been using to water and mist?

[Kirk]

2 thoughts come to mind:
They may not last long, used to have a lemon but too long a time so cannot recall what length of time they were around

Second is that if you have successfully pollinated them then they are not needed any longer. The purpose of the flower is to attract a pollinator and get pollinated. Once pollinated the flower has no purpose and discarding it saves energy for the plant.

[SkyChild]

Thanks I wasn't sure if that was it or if I had a very unhappy tree on my hands.
Moved the bananas that were next to it too, in case that wasn't helping

[starloc]

Misting with tap water will do no harm, watering with it its best to leave overnight for chlorene to evaporate....I do most of the time....

Flowers will fall, most of them especially with a young tree, lemon trees will set fruit on about 10% of the flowers and then drop lots of the mini fruit as well

Even on a big tree its normal to get a great crusty lump of dried up flowers in a bunch that are half brown and crunchy, i sort of crumble them off slowly every now and then but they fall on there own leaving the ones that have set fruit.

Just check sure you are not over watering.... or under watering......by only watering when it dries out at the top of the compost (a bit down in the pot) and never let it sit in water on a saucer underneath

Its always worth posting a picture in case something is wrong , someone may notice early signs of mites or scale etc