For chronic symptoms, it is essential to consult a doctor to find the underlying cause, such as a thyroid issue or vitamin deficiency. For temporary relief of constipation, you can try osmotic laxatives like polyethylene glycol, alongside increasing your fiber and water intake. For indigestion, generic H2 blockers like famotidine or antacids may help. However, because you are also experiencing weakness, a professional evaluation is crucial. Your doctor may suggest blood tests, including a thyroid panel and complete blood count, to ensure safe and effective treatment. Please avoid self-medicating long-term without medical guidance.