Am I just… a wimp?

Hello :)

I recently had my blood drawn because I have been feeling extremely unwell for months now. At first, my doctor called to tell me that my blood panel looked fine thus far (when she did not have all the results yet). Upon receiving all the results from the laboratory, it turns out my ferritin is at 11, my vitamin B12 at 319 and Vitamin D at 9. I try to trust the opinion of professionals and I even asked my roommate who studies medicine her opinion on the matter and everyone was quite casual about it and said that it is not the end of the world. In fact, my doctor apparently did not even feel the ferritin level to be particularly noteworthy, as she rather focused on the vitamin D level. (I‘m unaware of my actual hemoglobin level, I only acquired a copy of the panel above).

However, it feels like the end of the world on some days. The trouble focusing may be annoying in regard to my studies, but the actual physical symptoms are a real nightmare. air hunger, EXTREME shortness of breath, tachycardia, extreme exhaustion and fatigue while suffering from insomnia. I also sweat really easily but suffer from freezing extremities the remainder of the time. I’ve been bruising super easily (don’t know if that’s related)My diagnosed anxiety has been through the roof as well. However, I do not suffer from dizziness.

I even went to the doctor again today because I was scared of having a pulmonary embolism (risk factors at play in my case) because of my difficulty breathing and some weird leg pain I‘ve been having. She did a few tests and said she does not suspect anything of the sort. While that does ease my mind, I‘m still at a bit of a loss.

I‘m now taking supplements on all three fronts, but I‘m just wondering if deficiencies can really wreak havoc on a body like that? Am I just being highly sensitive and a bit of a crybaby, considering nobody seems concerned in the slightest? I apologize if this sentiment has been asked dozens of times before, I just try to not to browse the web too much when it comes to health matters due to my anxiety. Thank you for taking the time to read :)