upper abdomen

I have had what I originally thought was heartburn / indigestion since Tuesday, I bought peptol bismol and the next day all was fine until the evening when the uncomfortable feeling came back.
However I now think it might be anxiety, I don't get the feeling at all at night and for the first ten minutes or so when I wake up but as soon as I wake up I start worrying whether I've got stomach cancer or not ( I'm a real hypochondriac ) and the pain starts. I've just been talking to my Mum on the phone as shes just got back from her hols and I realised that it hadn't hurt for the last ten minutes as I'd obviously relaxed and stopped thinking about it , as soon as I remember within about five minutes the pain comes back.
My husband is going up to London tomorrow and I am worried about it especially as he is going by train and although I had put it to the back of my mind I wonder if sub consciously I have worried about it . plus the thought that I may be seriously ill. Then I try and tell myself if it was something serious it wouldn't come and go like this.
I am a complete worrier , I wish I wasn't and don't know how to stop
Any advice anyone ??

I reckon your stomach problem is caused by your anxiety. I've had stomach problems nearly all my life and if I have to do things I get nervous about, my stomach goes crazy. The only time I'm not really suffering with some sort of pain or feeling sick is when I'm asleep. Some people get migraines if they're stressed and some get indigestion. I reckon I'd prefer headaches!