As a diabetic, it is important to choose sugar-free options to manage your symptoms safely. For constipation, osmotic laxatives like polyethylene glycol are highly effective and will not affect your blood sugar levels. Bulk-forming laxatives like sugar-free psyllium husk are also safe choices. For bloating and gas, simethicone is a safe generic medication. Please avoid liquid laxatives or syrups, as they often contain hidden sugars. Drink plenty of water to help these medications work. Since your symptoms have lasted a week, please consult your doctor to rule out any diabetes-related sluggish bowel and ensure you receive the most appropriate care.