Is this candida?

In the middle of August 2013 I got a bout of food poising from a yogurt I had eaten it had been in the fridge opened for seven days since and this day maybe it had "gone off".

That was shortly following by stomach ache and feeling rough/nauseous of which I throw up. For next 2 days i didn't eat I just drank a lot of water and took several Activated Charcoal tablets to avoid any "Drugs". By the 3rd day I was able to eat simple food bananas/rice/chickpeas/ some spices.

For the remaining portion of that year I kept feeling a horrible background nausea, low mood/brain fog, depression, anger, irritability, slightly yellowed eyes and face.
Water made the nausea appear. I also had pressure on my breastbone what only appeared if I had bad posture and what created a false hunger and based on what certain foods I eat this would go away.
After some weeks I decided to look up all the symptoms Stomach ulcers/liver/ and thought maybe it was lack of good gut flora so I invested time in eating Probiotic fermented foods, yogurt, pickles etc and even olives provided temporary relieve to the nausea and symptoms in general.
One night i thought it was something bacteria or else. So after getting a burning sensation in my stomach that night I took about half a teaspoon of Baking soda. That night I felt the brain fog lift my mood went up but I had terrible anxiety the left side of my body feel weak and numb. This was cause for concern and we avoided going to the emergency department because the lack of other symptoms

For the next week or so I went on a low fat diet and drunk plenty of water I got heart palpitations for about a day what subsides the left side body weakness subsides after about a week. I also had a shower and came out extremely faint and nauseas which eventually passed.

Then one sunday i started getting really cold feet and anxious feelings I had with this tipped me over the edge and so we went Hospital, 2 symptoms discussing. 2 ECGs, Blood pressure, a blood test and a bout 3-4 hours later I'm back home with the all clear( 2 ECGS because i had to go to different local hospital to get the blood test and they rechecked with an ECG).

I continued on and started become extremely bloated full, fatigue started, tiredness random spurts of fever for about 5 minutes. Then is started noticing weird nail abnormalities, red tips, slight curving, weak bending this lead me to go to the doctors I told them I had the ECG etc 3 weeks ago they said deficiency from diet but order full blood count +kidney,Liver,B12,Vitamin D, Glucose levels, Thyroid etc.

Week later tests Come back Vitamin D very low 17ng/L B12 137ng/L. Kidney/Liver/Thyroid fine. White/Red blood cells perfect range.
They said B12 Injections or supplements and Vitamin D3 which I've started Vitamin D half way to my 3/4th week. B12 one week of High dose.

Since taking the Vitamin D/B12 I've noticed increased appetite, better mood, more energy, nails becoming a bit more solid/pink tips receding. Less "GERD"

Now my diet stayed the same and my symptoms have Improved. The added discovery of low levels of the above and supplementation has given me a good Boost and seem to be improving BUT I still have symptoms here and there.
One of them is a constant upper belly bloat, mass, slight constipation, gas, belching what goes away after a good nights sleep.

I've had other symptoms here and there and I can describe when and where over last year or more but it' going to clog up this post, I've tried simple home tests for low stomach acid etc and they come back positive but certain remedies for them don't seem to make any difference.

Thanks for listening