Since you have severe fatty liver and suddenly feel dizzy, you should also check your cerebral vessels. If there is a heart problem, the main symptoms will be pain and tension in the chest and surrounding areas, and may also be accompanied by difficulty breathing and weakness.
Lying flat feels uncomfortable. Although heart problems can't be completely ruled out, it is more likely that overweight leads to excessive burden on the heart and discomfort.
It is estimated that the main problems are blood lipid and blood viscosity. Pay attention to diet, exercise reasonably and promote weight loss.
General inspection is worth considering.
In addition, you can consult Chinese medicine and adjust the treatment with Chinese medicine to improve your physique.