Sudden dizziness, nausea, and heartburn for 2 weeks now.. whats going on?

Thank you very much for your reply. The Dr. did ask a few questions around the Oxycodone usage, but ruled that the dosing was too low and the timeframe was too short to have withdrawal symptoms. (But who knows, I am however going on 4 weeks of having these feelings)

Here's the update:

All blood tests came back normal, including Liver, Kidney, and Thyroid. What we are now thinking is that when they did the nerve block during surgery, there may have been some damange, in which the nerve is now regenerating and doing odd things to my system. The "rushes" I get do feel like a neurological type of rush. Which could easily explain why my symptoms mirror panic attacks AND the Lorazepam is making me feel better.

Dr. put me on BuSpar and I have some meds for quick action if needed. Gonna ride it out for a few months and pray my body normalizes itself.

Any other thoughts or advice you might be able to provide on this?

Hi, I've been having exactly the same symtpoms, when I'm in bed and it feels like adrenaline starts surging and I'm suddenly wide awake. I'm 90% sure the cause is GERD. I'm using omeprazole and this works most of the time, gaviscon helps for the bad cases. Also not eating 2-3 hours before bed is crucial, as well as elevating the head of the bed. Large volumes of alcohol make it worse e.g pints of beer, as well as anything stronger than wine (vodka etc). Hangover days tend to be the worst, so I try to limit my nights out drinking. You could try these or maybe run the GERD idea past your doctor and try some proton pump inhibitors

Interesting! What is that (pheochromocytoma)?

My sudden "surges" are gone, but I am left with reflux and "room spinning" dizziness. I ended up stopping ALL of my meds about 3 weeks ago for all those symptoms I was having. I felt A LOT better, but again, still dealing with a few things. I'm trying NOT to medicate, but do need to take Tums or an anti nausea/dizziness pill every now and then. I'm hoping that whatever this was, and still is, is just a reaction to all the meds (possibly withdrawal symptoms).

Thanks everyone for replying, its so hard to really try to narrow things down on the internet AND with your doctor!

A pheochromocytoma is a tumor of the adrenal gland. Ninety percent of the time they are benign, but they can be cancerous. They cause random adrenaline rushes, which doctors often mistake for panic attacks based on the patient's description. My doctor was treating me for panic attacks for several months (without success) before I did some internet research, learned about pheochromocytomas, and got my doctor to do the test. These things are always fatal if left untreated, and as I learned, doctor's aren't typically looking for them because they are so rare.

You may have something completely different, but when you said adrenaline rushes and heartburn, that made me instantly think of the pheo. Those were my major symptoms, along with the dizziness that comes along with the adrenaline rushes. Another indicator is a difference in you BP of more than 20 points when you stand up. In other words, if your sitting BP is 140/XXX when you are sitting, then it's 115/XXX when you stand up, that is an indicator of a pheo. Get yourself one of those home BP testers. They are only $50 or so. I actually had to show my doctor that my BP was 235/120 during one of these episodes to convince him to do the test for pheochromocytoma.