Had the Flu for 1 Week, all symptoms gone except appetite and sulfur burps help

[MacBretney]

I had what i can only deacribe as the flu for about 5 days, all the symptoms disappeared except
-
I don't feel great when I'm at work or exercise, I still feel an underlying sick feeling
I feel  sick after eating
And I have burps that smell like rotten eggs

It's been over a week now, why won't this sick feeling and rotten burps go away? Do I have something else? Was it even the flu? What sort of infection is this? It's getting in the way of my training and I can't eat as much, causing me to lose weight

[MacBretney]

I just feel like this is never going to go away...it's an underlying sick feeling and rotten egg burps. I'm trying to juice organic fruits and vegetables with lemon and ginger but I don't know how well this is working.

Do I have a gut infection? Why don't I have diarrhoea, bloating or any pains ? Just unable to eat as much, feel sick after eating and burp rotten eggs