It is unlikely that pure paracetamol caused your increased heart rate. However, many cold remedies combine paracetamol with decongestants (like pseudoephedrine or phenylephrine). These decongestants can interact with your thyroid medication (Thyronorm), causing a rapid heart rate. This reaction is usually temporary and not dangerous, but you should stop taking that medication. Please check the ingredient label. For safe cold relief, you can take plain paracetamol, use saline nasal sprays, or try steam inhalation. Avoid multi-symptom cold products containing decongestants. If your rapid heart rate persists or you feel dizzy, please consult your doctor.

Your body relies on this hormone to keep your metabolism running; without it, you will feel very tired. While light sensitivity is less common, thyroid fluctuations can sometimes cause dry, strained eyes. Since you didn't share your specific TSH numbers, I can't review them, but stopping your medication typically causes TSH to rise, signaling your body needs hormone replacement. Do contact your doctor to safely restart your medication and review your blood test.

You should continue taking this same dose. Stopping or changing it could cause your thyroid levels to fluctuate again. To keep you feeling your best, it is important to maintain this routine and have your levels checked periodically, usually every 6 to 12 months, as advised by your doctor.

It is very common to experience irregular periods while breastfeeding, as your hormones are naturally adjusting. However, feeling unusually cold while taking Thyronorm (levothyroxine) could suggest your thyroid hormone levels need a quick check. Postpartum changes can alter your body's thyroid needs. I gently recommend sharing these symptoms with your doctor. They can run a simple blood test to see if your levothyroxine dose needs a minor adjustment, which should help you feel much warmer and more comfortable.

When you miss ovulation, your body doesn't produce progesterone to trigger your period. Without it, estrogen continues to build the uterine lining, which is why it has reached 14 mm. This is a very common and expected finding in a delayed cycle. Crina NCR (norethisterone) acts like progesterone to help shed this built-up lining, which should return it to a normal thickness after your period. Since you also take Thyronorm (levothyroxine), keeping your thyroid levels balanced will help regulate your cycles.

Since these itchy, acne-like patches on your forehead haven't responded to adapalene or Clearz Plus, and given your PCOD, this might not be typical acne. The itchiness strongly suggests a condition called fungal folliculitis (an overgrowth of natural yeast), which mimics acne but requires antifungals rather than standard acne topicals. Hormonal fluctuations can also contribute. I gently recommend consulting a dermatologist to confirm this. They may suggest a topical antifungal like ketoconazole, which is safe to use alongside your metformin and levothyroxine.