It's perfectly fine and normal for your symptoms to come and go. Unless you're experiencing bleeding, there's no reason to fear that you might be losing your pregnancy.

you're getting closer to the end of the first trimester and i think it's pretty normal for there to be a shift in hormones. i think the baby/placenta are developed enough to take over the hormone production or something like that at this stage. that's why a lot of women stop having morning sickness when they reach the second trimester. my breasts were only tender during the first trimester. they haven't had any pain at all since then. they always talk about the second trimester as being the most enjoyable stage of your pregnancy because the baby will eventually pop out of the pelvis, meaning less pressure on your bladder, but it isn't big enough to be very uncomfortable, as it may be at the end of your pregnancy. those things along with the hormone change are what make it a more comfortable part of your pregnancy. i hope that's all it is. i'm sure you are fine. congrats! and welcome to the forum.

its very normal :] i had very little symptoms at all in my first trimester
i only got morning sickness once and other than being tired that was it
my breats started to hurt about 11-13 weeks and they still hurt. but it comes and goes

be glad you DONT have all the symptooms of being pregnant! lucky!!!!