My hamster is in heat, right?

[CookieBlossomBella]

So my hamster Bella (who I have had for nearly a couple of months) is quite smelly at the minute and she keeps sticking her tail up. However, this smell is a lot stronger than i have noticed before and considering they go into heat so often, i would have thought i would have noticed such a smell before if she is in heat. The smell resembles urine however i spot clean all of the peed on areas every day and so she does not normally smell.
She is probably just in heat and I am being an over-concerned ham mum but i would appreciate confirmation that she is just in heat but if you believe there is something else going on, please leave that below as well.

(I would just like to point out as well, she is eating normally and she does not look any different to normal but as i say, I am probably just being over dramatic haha)

[souffle]

It does sound like she is in heat if she is lifting her tail. The smell sometimes gets stronger as they mature and as the summer comes in and they are more likely to want to attract a mate.