persistent nausea

EIghteen months ago I was having GERD . I had an endoscopy and the finding was a 3 cm hiatal hernia and gastritis in upper stomach along with some polys which were biopsied. They were harmless and there was no H.pylori I was placed on Nexium for 4 months and fine thereafter. Seven months ago I was placed on Fosamax for 1 month and then changed to FOsamax Plus which I took for 2 weeks. A couple of mornings after the last tablet, I vomited and have been having persistent nausea since and vomiting on 3 occassions.
My GP ordered the following all of which came back normal. BUn, Creatinine, SOdium, TOtal Protein, ALbumin, Calcium, Phosphorus, ALK Phosphatase, Total Bilirubin, LDH, GGT, Amylase Srum, Magnesium, AST(Sgot) and ALT(Sgpt) which was little elevated at 39 range being 5-38. Thyroid and Sugar test were also normal. Abdominal Ultrasound normal. Pelvic Ultrasound showed 3cm cysts on left ovary(I am 10 years post menopausal and not sure if ovarian cysts are normal at this stage). I have no confidence in the two ultrasounds as total time spent by the radiologists doing the two scans was 10 minutes. LIterally, undressed in and out in 10 minutes. My GP then sent me  back to the Gastroenterologist who after 1 month of Nexium and Maxalon did an endoscopy and told me this time he only found the  HIatus hernia to be 1cm , several 3-5 mm sessile ploys,erosive GERD and I should stay on Nexium and Maxalon for 2 months then come back. A month later, and a couple of vomiting episodes, I visited a second gastroenterologist who did a colonoscopy which was normal and another endoscopy which showed a 3 cm hiatus hernia. BOth doctors feel the hernia is not large enough to cause any problem.The HIstology report: "show protions of gastric antral and body mucosa. The former exhibits elongation of foveolar epithelium with pseudovillous transformotion. THe subjacent stroma contains a sprinkling of chronic inflammatory cells with and smooth muscle fibres extending from the muscularis mucosa. The body mucosa including the polypoid portion shows interstitial haemorrhage in the superficial mucosa with focal ulceration and epithelial regeneration and consequent polpp formation No H. Pylori organisms seen"  COnclusion: reactive gastrities,pangastritis, acute heamorrhagic gastritis, renenerative polyp.THis second gastroman has me on Motilium (for nauseau) and Pariet(rabeorazol) 20Mg. 2x daily. I am to take for 2 months. At the end of 2 months if I am still nauseous he wil also treat me for Bile reflux as some bile was visible during the endoscopy. I'm not sure why he did just go ahead to treat for Bile reflux. As another point of interested, I have had visual change in one eye that has my eye doctor concerned, especially in view of the persistent nausea. He wants me to come back in 3 months at which time he will decide if I need a brain scan (MRI or CT). HOwever, I have no headaches nor coordination problems. Just this everyday, especially early morning nausea some vomiting. I think one vomiting session was due to the preparation drink for the colonoscopy but the others have followed consumption of simple things like light-yogurt orCHinese food or egg and toast.  I do not consume alcohol and am on no other medications. No even aspirin. DO you have any suggestions as I am concerned that something other than stomach issues maybe making me nauseous. Also, do you have any suggestions for medication to treat oseto porosis which will not harm my stomach? Many,many thanks.