Hi cridomanda,
This is very curious, my symptoms present the same as yours.
In 2010-2011 I visited Costa Rica with the family, and got an insect bite on the inside of my left foot. The bite took easily 3 weeks to resolve, incredibly itchy. Every several months the bite comes back and itches a lot, same place every time.
After the birth of my 2nd son, I progressively got ill. Severe chronic fatigue, dizziness, neuropathy in my arms & legs, terrible digestive issues, nausea, the feeling like I was drunk while walking, and the list goes on. The fatigue was so bad, I crashed as soon as I got home, and after 11-12 hrs of sleep, I would still be exhausted.
Since I've been diagnosed with 2 autoimmune issues, CIRS and hashimoto's. I am fairly stable healthwise, since I have put the hashimoto's into remission, but my health tends to wax & wane.
I would like to talk to you and see what you have found out since. Last post was in 2015. I am happy to share my email address - nancy.chincholi@gmail.com
Hope all is well ... I am astounded at how similar our health situation is/was. I am fairly certain we are suffering from the same illness.
Nancy