Can acid reflux cause tingling /heat feeling in the head? And dizziness? + a little weight loss? If no what could it be?

Re-evaluate. Tingling, heat, and dizziness are all possible symptoms of low blood sugar and low blood pressure. Aldactone (spironolactone) that you are using as an anti-andorgen could be contributing to these symptoms. Eating 6 equal small meals, staying hydrated, movement through the day, and a good night sleep might help.