All you posts have a similiar theme. It does feel to me like you may have health anxiety.
Health anxiety refers to an excessive preoccupation or worry about having a serious illness. Often, health anxiety persists even after a physician has evaluated a person and reassured them that their concerns about symptoms do not have an underlying medical basis or, if there is a medical illness, the concerns are far in excess of what is appropriate for the level of disease.
Studies have shown that cognitive behavioral therapy works well for people with health anxiety. There is an online, free version you may work from home on your own time if you do not have a therapist to help you.
Free CBT Online/MoodGYM
I wish you the best.