Could an MRI without contrast and a CT Scan with and Without contrast miss a tumor?

[itzanon]

Hello all,

I developed some odd symptoms about 3 months ago. Frequent dizziness spells, brain fog, derealization, some fatigue, and this caused my anxiety to go through the roof.
I was pretty much debilitated. These feelings would come and go but for the most part I felt off.
After googling symptoms I developed some heavy health anxiety about a brain tumor.
I went to the ER and was blown off as anxiety and stress, I got to a PCP and was told the same thing after blood tests and a quick neurology test came back normal.
I was prescribed anti depressents that I refuse to take and risk messing myself up even more.
I was still feeling awful and certainly not convinced this was anxiety related.
I went to the ER mentioned nothing about anxiety and was given a CT scan with and without contrast to rule out anything sinister, more blood tests, and more in depth neurology exam. All came back normal once again.
As I continued dealing with these awful symptoms and developing more issues from my anxiety I saw a new doctor and requested an MRI.
He requested it but only did it without contrast. When I asked why he can't request with and without he said only a neurologist can request contrast and it would certainly show any tumors.
I got the MRI done and it came back totally normal. No signs of ANYTHING wrong.
I researched it more and found that an MRI without contrast can miss tumors.
I asked a few doctors online and got mixed opinions, most say it's a very safe bet that there is no symptomatic tumor from both tests coming back completely normal, but is risking leaving a tumor that was unnoticed by the scans worth it just because "it's a very safe bet and is highly unprobable" just because of how rare a tumor at my age would be (20 years old) and having those tests coming back normal?
Doctors don't really think a tumor is causing my issues but a lot of my symptoms match stories from what I've read.
My big question is, is it safe to rule out a tumor from a normal CT Scan with and without contrast and an MRI without contrast coming back normal or do I need to request an MRI with contrast to rule that out?
I don't really trust doctors much as they go off of statistics from symptoms, and the statistics my symptoms being from a tumor at my age are VERY low.
Any info is highly appreciated.

[rumpled]

After al the scanning, and the clear exams, it is improbable to have a tumor. That being said, there are other things that can be off that can cause some of your symptoms like hormones, vitamins, minerals, and other neuro- muscular issues or even inner ear issues.

The ER is a great place for broken legs and heart attacks, but not for getting diagnosed with anything and when you may have something that can't be diagnosed in the 3 minutes we get at the doctor now, it can take many appointments, many specialists and a lot of time to figure it out. I suggest you find a great pcp who you do trust and will do some testing to get you sent on to specialists who can figure this out. Get copies, and dr google can only help so much, so use it as a tool, not as the primary.

[itzanon]

Yeah I got a new PCP and mentioned my worry of having the non contrast MRI and she reassured me saying they use contrast to to see the blood vessels working with the brain and to detect aneurysms, etc and a tumor causing my symptoms certainly would have been found.
I found that I have off the charts low Vitamin D, she said it's the lowest she's ever seen.
I'm now getting that corrected, and seeing if that helps.
Had an ENT appt. which checked my ears and said everything was fine as he also did a more in depth balance test and said I have perfect balance.
Started a new diet and am putting most of this down to anxiety.
Thanks for the reassurance!