Thanks for the query.
Itchy skin and fatigue
can be related to hypothyroidism
Please get your thyroid levels checked.
Swollen calf and stomach upset
can be a different problem.
If all the reports are normal you dont need to be anxious.Anxiety
itself gives rise to many problems.
Please meet a physician. for exact diagnosis and treatment.
Let me know if you have any other doubt.
you can ask a direct question to me on this forum, following the below link.
Wishing you a good health.