I honestly need some opinions

So I am having trouble getting an appt with my dr rn. So for now all I can do is wonder. But I’m 33 weeks pregnant. But sometimes I get these LOCALIZED pains in my ribs/back/chest. All kinds of pain. Achy, burning, sharp. It’s always random. Normally it’s not that bad. But this past week it’s been multiple spots. And then I just started getting shortness of breath the other day. It doesn’t hurt to breathe tho. It actually hurts more if I move OR if I stay in a spot too long and then move.

Anyways I went to the ER twice this week. Both sent home. Yesterday. I came in cause well shortness of breath and pain. TERRIFIED it was a PE in my lungs. They refused to do a ct scan cause I already got two while pregnant. They said since my oxygen is 100% and my legs came clear on an ultrasound it’s not a PE in lungs. She said that it could be “costochondritis” something else that inflames the ribs and such. But she said costochondritis doesn’t cause shortness of breath? She gave me a steroid. And the steroid actually worked. My breathing kinda got better too. And then the OB dr came in and reassured me that it’s 100% not a PE in lungs and said I’m dealing with pregnancy dyspnea which won’t get better till baby is out of me.

So anyways. Do you think this sounds like costochondritis? Not asking for a diagnosis. Just asking your opinion. I plan on asking my dr about it. In order to get medicines to help it out.