Gerb and lump in the throat

Hi,
everything has started in August last year, I started to get an acid reflux and heartburn, then in December last year I had a gastroenteritis attack. After that my JP doctor has made some test and discovered Helico bacter Pylori , he has prescribed me the antibiotics to treat it. After I had a course of antibiotics I still had a gerb symptoms: heartburn, bad smell from the mouth, sour taste, acid reflux. I was taking Lanzaprozole 40 mg 2 times a day for 3 months. It looked as if it helped, than 3 weeks I wasn't taking anything, and symptoms returned. 40mg didn't worked already and doctor prescribed 60 mg a day. I was taking them for 3 more months, then doctor has changed them to Omeprozole as I started to get a side effects breathless). I was taking Omeprozole for 2 more months. It was working a little but i still had symptoms (not as bad but still they appeared) I had an endoscopy and blood tests made in July - all of them were normal. But symptoms still were present. Doctor has changed the medicine to Ranitadine. I always was cooking everything myself (me and my family hates junk food). I stopped drinking coffee 1,5 ago (before I was drinking it once a week). I can sleep normally( a bit of acid but I can sleep with it) at night.

Before all this has started I was on a constant dieting, wasn't eating properly, (5 years ago, after the pregnancy I had put on weight 20 kg and I desperately wanted to loose it), and it didn't worked for me. I'm still 20 kg more then I was before. While I was pregnant I had a constipation which I still continue to have (unless I eat plum or something which would help). When I spoke to my psychologist, she said that I have a constant fear inside my head(fearing almost for everything), and the reason why I get acid reflux is because of my fears/scares of everyday things and life in general. And she said that this is something that sits in my Subconscious. And my weight is my stress, which is my bodies protection against stress........I live with my husband and daughter who just started to school and the most stress is from the thing that we are on our own in this country and all our relatives have left the country, so and I had a scare that if something we can only really on ourselves...
I don't know whether this is relevant but I also had a fungal nail on my 2 thumbs almost for a year (and its cured only this spring) I was on a Terbinofine for 6 months, and then I stopped as I was feeling sick, and started to wash my thumb with apple vinegar 2 times a day (which really helped).

Now I have sour taste on my tongue almost after every food, during the day acid reflux, burping in my tummy and stool is quite hard. But the main thing that I started to have and which really annoys me is every time AFTER I had some food acid starting to cause lump in a throat feeling, when I let acid out its easier but only for a few seconds until it starts to build up in a throat again.

I have read in forums that Nat Phos 6x and Arnica 6c really help, but I thought I ask you for advice first.