[52F] Experiencing sudden onset of extreme fatigue, weakness, and headache

What might be happening

Based on the information you have provided, possible explanations for your symptoms include:

• Viral Infection: Your symptoms of fatigue, weakness, and a low-grade fever could be due to a common viral infection, such as the flu or a cold. These infections can cause a variety of symptoms and generally resolve on their own within a week or two.

  • Treatment typically involves rest, hydration, and over-the-counter medications to manage symptoms.

• Chronic Obstructive Pulmonary Disease (COPD) Exacerbation: Although you mentioned that you don't believe this is a flare-up of your COPD, it's possible that your symptoms could be related to your COPD. Fatigue and weakness are common symptoms of a COPD exacerbation.

  • Treatment typically involves medications to manage symptoms and may require hospitalization in severe cases.

• Side Effects of Medication: Some of the medications you're taking, such as Effexor, can cause side effects like fatigue and weakness.

  • If you suspect your symptoms are due to a medication you're taking, you should consult your doctor. They may be able to adjust your dosage or switch you to a different medication.

• Potassium Deficiency: You mentioned that you've been taking potassium supplements due to a deficiency. Low levels of potassium can cause symptoms like fatigue and weakness.

  • Treatment involves taking potassium supplements, which you're already doing.

What you can do

1. Rest and hydrate: Make sure you're getting plenty of sleep and drinking enough fluids. This can help your body recover if you're dealing with a viral infection.

2. Monitor your symptoms: Keep track of your symptoms and note any changes or worsening. This information can be helpful if you decide to seek medical attention.

3. Consult your doctor: Given your symptoms and medical history, it would be a good idea to consult your doctor. They can provide a more accurate diagnosis and appropriate treatment.

What you should look out for

• If your symptoms worsen or don't improve within a week, you should seek medical attention.
• If you experience severe shortness of breath, chest pain, or confusion, you should seek immediate medical attention. These could be signs of a serious condition.

Remember, this advice is intended to be general in nature, and specific causes may not apply to your situation. Always consult with a healthcare provider for appropriate examination, testing, and care recommendations.