Can't take a full, deep breath?

[Amaliaaa]

For the past 9-10 days I haven't been able to fully inhale unless i'm yawning, although I am occasionally able to fully inhale. It's always like i'm a ''fish out of water'', needing to take a full, satisfying breath. I also have fatigue and my whole body aches but feels as if I need a well done massage, as if I have a bunch of knots everywhere that has to be rubbed out. They seem to feel like they are scattered throughout my body that won't seem to go away even after being massaged. I went to the doctor 5 days ago and he took my vitals, heard no fluid in my lungs, put the oxygen sensor on my finger and supposedly read the normal range and he just did general in office tests (no x-rays, he felt they weren't necessary) and he heard no wheezing. He told me that this did not seem to be asthma and was related to anxiety. He prescribed me an antihistamine/anxiety medication. The problem with this theory is that I am perfectly content and have no reason to be anxious about anything. I should know, it's me. It has been going on for a while and seems to be getting worse over time. As the day goes on I feel like I am in need for oxygen. I feel like just because there is no fluid or wheezing, this doesn't mean that this isn't another medical issue other than anxiety.I respect the doctor's opinion but because when I went I was nervous and my vitals came back fine he assumed it was anxiety. I don't want to get an x-ray or any radiation because I am generally against it but I know that there are times when it is necessary to do so. I also feel like this is nothing too serious, although I am almost for sure this isn't anxiety. I'm 21 years old and have only smoked a few times in my life and I have had asthma when I was younger. The doctor seemed to think that this didn't sound like asthma and when i took my inhalers they did not help. It feels as if my airways are very slowly closing. What do you think this is?
(even though i'm pretty sure this isn't anxiety, I am posting here because I was told this is what it could be)

[Amaliaaa]

Did you need to get X-rays because of your breathing? Or do you think I will need X-rays if I see another doctor for a second opinion?

[mom2cdj]

I was exactly like you about a month ago. I just couldn't get a full deep breath and had to keep yawning in order to get. I have never had an anxiety problem although I was diagnosed with OCD (which I just found out is in the anxiety family) when I was in high school (about 17 years ago). I haven't been on any medication or had any problems for about 7 years. But about a month ago, I had those same feelings. Then one night, it was horrible. I thought I was going to have to go to ER. I am now in the process of getting a mental evaluation, which unfortunately is not until August because I have to go to a place that does not need insurance. Problem is, I have never had anxiety attacks nor have any real problem to have them. But, with everything I have read, the breathing is what it is. That is how it started. Best advice, don't Google the symptoms and get in to see psychiatrist.  Remember to breath through your nose with the stomach not chest.

[PrincessSaturn]

If it's related to anxiety you're most likely having a panic attack. I have panic attacks even without realizing i'm worrying about something. The best thing you can do is try to clear your mind and control your breathing by doing breathing exercises. Other things that may help are taking warm bubble baths, drinking tea, exercising regularly is also vital.

[ThePinkFloyd]

I use to have asthma and the inhailers were doing mirracles.If its anxiety then they will not help.If its anxiety then the more you think about it the more deficult would be for you to breath.Stop thinking about that and relax..have you efer think about talking to a specialist?Like a psychologist?